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KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusville, Fla., one of the five THEMIS probes is ready to be covered for its move to the hazardous processing facility. There it will be placed on a stand in preparation for fueling operations. Once fueling is complete, each probe will be weighed and individually mated to the payload carrier before pyrotechnics are installed. The fully integrated THEMIS payload is then ready for spin-balance testing and weighing. The final milestone is mating THEMIS to its upper stage booster. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. These lights are the visible manifestations of invisible energy releases, called geomagnetic substorms, in near-Earth space. THEMIS will not only seek to answer where and when substorms start, but will also provide clues as to how and why these space storms create havoc on satellites, terrestrial power grids, and communication systems. THEMIS will be transported to Pad 17-B at Cape Canaveral Air Force Station on February 1 for mating to the Delta II rocket. Launch is scheduled for Feb. 15. Photo credit: NASA/George Shelton KSC-06pd2813

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusville, Fla., one of the five THEMIS probes is ready to be covered for its move to the hazardous processing facility. There it will be placed o More

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusville, Fla., one of the five THEMIS probes is moved out of the facility and will be transported to the hazardous processing facility. There the probes will be placed on a stand in preparation for fueling operations. Once fueling is complete, each probe will be weighed and individually mated to the payload carrier before pyrotechnics are installed. The fully integrated THEMIS payload is then ready for spin-balance testing and weighing. The final milestone is mating THEMIS to its upper stage booster. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. These lights are the visible manifestations of invisible energy releases, called geomagnetic substorms, in near-Earth space. THEMIS will not only seek to answer where and when substorms start, but will also provide clues as to how and why these space storms create havoc on satellites, terrestrial power grids, and communication systems. THEMIS will be transported to Pad 17-B at Cape Canaveral Air Force Station on February 1 for mating to the Delta II rocket. Launch is scheduled for Feb. 15. Photo credit: NASA/George Shelton KSC-06pd2816

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusville, Fla., one of the five THEMIS probes is moved out of the facility and will be transported to the hazardous processing facility. There t More

KENNEDY SPACE CENTER, FLA. -- One of the five THEMIS probes arrives at the hazardous processing facility after leaving Astrotech Space Operations in Titusville, Fla. At the facility, the probes will be placed on a stand in preparation for fueling operations. Once fueling is complete, each probe will be weighed and individually mated to the payload carrier before pyrotechnics are installed. The fully integrated THEMIS payload is then ready for spin-balance testing and weighing. The final milestone is mating THEMIS to its upper stage booster. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. These lights are the visible manifestations of invisible energy releases, called geomagnetic substorms, in near-Earth space. THEMIS will not only seek to answer where and when substorms start, but will also provide clues as to how and why these space storms create havoc on satellites, terrestrial power grids, and communication systems. THEMIS will be transported to Pad 17-B at Cape Canaveral Air Force Station on February 1 for mating to the Delta II rocket. Launch is scheduled for Feb. 15. Photo credit: NASA/George Shelton KSC-06pd2818

KENNEDY SPACE CENTER, FLA. -- One of the five THEMIS probes arrives at the hazardous processing facility after leaving Astrotech Space Operations in Titusville, Fla. At the facility, the probes will be placed More

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusville, Fla., technicians help lower a shipping container over one of the five THEMIS probes for its move to the hazardous processing facility. There it will be placed on a stand in preparation for fueling operations. Once fueling is complete, each probe will be weighed and individually mated to the payload carrier before pyrotechnics are installed. The fully integrated THEMIS payload is then ready for spin-balance testing and weighing. The final milestone is mating THEMIS to its upper stage booster. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. These lights are the visible manifestations of invisible energy releases, called geomagnetic substorms, in near-Earth space. THEMIS will not only seek to answer where and when substorms start, but will also provide clues as to how and why these space storms create havoc on satellites, terrestrial power grids, and communication systems. THEMIS will be transported to Pad 17-B at Cape Canaveral Air Force Station on February 1 for mating to the Delta II rocket. Launch is scheduled for Feb. 15. Photo credit: NASA/George Shelton KSC-06pd2814

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusville, Fla., technicians help lower a shipping container over one of the five THEMIS probes for its move to the hazardous processing facility. More

KENNEDY SPACE CENTER, FLA. -- One of the five THEMIS probes is being transported from Astrotech Space Operations in Titusville, Fla., to the hazardous processing facility. There the probes will be placed on a stand in preparation for fueling operations. Once fueling is complete, each probe will be weighed and individually mated to the payload carrier before pyrotechnics are installed. The fully integrated THEMIS payload is then ready for spin-balance testing and weighing. The final milestone is mating THEMIS to its upper stage booster. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. These lights are the visible manifestations of invisible energy releases, called geomagnetic substorms, in near-Earth space. THEMIS will not only seek to answer where and when substorms start, but will also provide clues as to how and why these space storms create havoc on satellites, terrestrial power grids, and communication systems. THEMIS will be transported to Pad 17-B at Cape Canaveral Air Force Station on February 1 for mating to the Delta II rocket. Launch is scheduled for Feb. 15. Photo credit: NASA/George Shelton KSC-06pd2817

KENNEDY SPACE CENTER, FLA. -- One of the five THEMIS probes is being transported from Astrotech Space Operations in Titusville, Fla., to the hazardous processing facility. There the probes will be placed on a s More

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusville, Fla., technicians release the overhead crane from the shipping container placed around one of the five THEMIS probes for its move to the hazardous processing facility. There the probes will be placed on a stand in preparation for fueling operations. Once fueling is complete, each probe will be weighed and individually mated to the payload carrier before pyrotechnics are installed. The fully integrated THEMIS payload is then ready for spin-balance testing and weighing. The final milestone is mating THEMIS to its upper stage booster. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. These lights are the visible manifestations of invisible energy releases, called geomagnetic substorms, in near-Earth space. THEMIS will not only seek to answer where and when substorms start, but will also provide clues as to how and why these space storms create havoc on satellites, terrestrial power grids, and communication systems. THEMIS will be transported to Pad 17-B at Cape Canaveral Air Force Station on February 1 for mating to the Delta II rocket. Launch is scheduled for Feb. 15. Photo credit: NASA/George Shelton KSC-06pd2815

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusville, Fla., technicians release the overhead crane from the shipping container placed around one of the five THEMIS probes for its move to th More

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusville, Fla., a worker attaches a high pressure line on the THEMIS spacecraft in preparation for fueling, which is scheduled for Jan. 3-5. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/George Shelton KSC-06pd2848

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusville, Fla., a worker attaches a high pressure line on the THEMIS spacecraft in preparation for fueling, which is scheduled for Jan. 3-5. T More

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusville, Fla., a worker attaches a high pressure line on the THEMIS spacecraft in preparation for fueling, which is scheduled for Jan. 3-5. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/George Shelton KSC-06pd2847

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusville, Fla., a worker attaches a high pressure line on the THEMIS spacecraft in preparation for fueling, which is scheduled for Jan. 3-5. T More

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusville, Fla., a worker examines connections on the THEMIS spacecraft, which is expected to be fueled Jan. 3-5. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/George Shelton KSC-06pd2850

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusville, Fla., a worker examines connections on the THEMIS spacecraft, which is expected to be fueled Jan. 3-5. THEMIS consists of five identi More

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusville, Fla., a worker prepares one of the THEMIS probes for electrical system checkout. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/George Shelton KSC-06pd2846

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusville, Fla., a worker prepares one of the THEMIS probes for electrical system checkout. THEMIS consists of five identical probes, the large More

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusville, Fla., a worker attaches a high pressure line on the THEMIS spacecraft in preparation for fueling, which is scheduled for Jan. 3-5. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/George Shelton KSC-06pd2849

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusville, Fla., a worker attaches a high pressure line on the THEMIS spacecraft in preparation for fueling, which is scheduled for Jan. 3-5. T More

KENNEDY SPACE CENTER, FLA. -- On Launch Pad 17-B at Cape Canaveral Air Force Station in Florida, workers check the lines attached to the lower end of the United Launch Alliance Delta II rocket before it is lifted into the mobile service tower. The rocket is the launch vehicle for the THEMIS spacecraft, consisting of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. After the first stage is in the mobile service tower on the pad, nine solid rocket boosters will be placed around the base of the first stage and attached in sets of three. THEMIS is scheduled to launch aboard the Delta II at 6:07 p.m. EST on Feb. 15. Photo credit: NASA/George Shelton KSC-07pd0028

KENNEDY SPACE CENTER, FLA. -- On Launch Pad 17-B at Cape Canaveral Air Force Station in Florida, workers check the lines attached to the lower end of the United Launch Alliance Delta II rocket before it is lif More

KENNEDY SPACE CENTER, FLA. -- The first stage of a United Launch Alliance Delta II rocket moves into place in front of at the mobile service tower on Launch Pad 17-B at Cape Canaveral Air Force Station in Florida. The rocket will be raised to a vertical position and lifted into the tower. The rocket is the launch vehicle for the THEMIS spacecraft, consisting of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. After the first stage is in the mobile service tower on the pad, nine solid rocket boosters will be placed around the base of the first stage and attached in sets of three. THEMIS is scheduled to launch aboard the Delta II at 6:07 p.m. EST on Feb. 15. Photo credit: NASA/George Shelton KSC-07pd0024

KENNEDY SPACE CENTER, FLA. -- The first stage of a United Launch Alliance Delta II rocket moves into place in front of at the mobile service tower on Launch Pad 17-B at Cape Canaveral Air Force Station in Flo More

KENNEDY SPACE CENTER, FLA. -- The first stage of a United Launch Alliance Delta II rocket leaves for Launch Pad 17-B on Cape Canaveral Air Force Station in Florida. The rocket is the launch vehicle for the THEMIS spacecraft, consisting of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. After the first stage is in the mobile service tower on the pad, nine solid rocket boosters will be placed around the base of the first stage and attached in sets of three. THEMIS is scheduled to launch aboard the Delta II at 6:07 p.m. EST on Feb. 15. Photo credit: NASA/George Shelton KSC-07pd0021

KENNEDY SPACE CENTER, FLA. -- The first stage of a United Launch Alliance Delta II rocket leaves for Launch Pad 17-B on Cape Canaveral Air Force Station in Florida. The rocket is the launch vehicle for the TH More

KENNEDY SPACE CENTER, FLA. -- On Launch Pad 17-B at Cape Canaveral Air Force Station in Florida, the first stage of a United Launch Alliance Delta II rocket is raised off its transporter to a vertical position. The rocket will then be lifted into the mobile service tower. The rocket is the launch vehicle for the THEMIS spacecraft, consisting of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. After the first stage is in the mobile service tower on the pad, nine solid rocket boosters will be placed around the base of the first stage and attached in sets of three. THEMIS is scheduled to launch aboard the Delta II at 6:07 p.m. EST on Feb. 15. Photo credit: NASA/George Shelton KSC-07pd0026

KENNEDY SPACE CENTER, FLA. -- On Launch Pad 17-B at Cape Canaveral Air Force Station in Florida, the first stage of a United Launch Alliance Delta II rocket is raised off its transporter to a vertical position More

KENNEDY SPACE CENTER, FLA. -- On Launch Pad 17-B at Cape Canaveral Air Force Station in Florida, the first stage of a United Launch Alliance Delta II rocket is raised off its transporter to a vertical position. The rocket will then be lifted into the mobile service tower. The rocket is the launch vehicle for the THEMIS spacecraft, consisting of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. After the first stage is in the tower on the pad, nine solid rocket boosters will be placed around the base of the first stage and attached in sets of three. THEMIS is scheduled to launch aboard the Delta II at 6:07 p.m. EST on Feb. 15. Photo credit: NASA/George Shelton KSC-07pd0027

KENNEDY SPACE CENTER, FLA. -- On Launch Pad 17-B at Cape Canaveral Air Force Station in Florida, the first stage of a United Launch Alliance Delta II rocket is raised off its transporter to a vertical position More

KENNEDY SPACE CENTER, FLA. -- On Launch Pad 17-B at Cape Canaveral Air Force Station in Florida, the United Launch Alliance Delta II rocket is lifted up into the mobile service tower. The rocket is the launch vehicle for the THEMIS spacecraft, consisting of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. After the first stage is in the tower on the pad, nine solid rocket boosters will be placed around the base of the first stage and attached in sets of three. THEMIS is scheduled to launch aboard the Delta II at 6:07 p.m. EST on Feb. 15. Photo credit: NASA/George Shelton KSC-07pd0029

KENNEDY SPACE CENTER, FLA. -- On Launch Pad 17-B at Cape Canaveral Air Force Station in Florida, the United Launch Alliance Delta II rocket is lifted up into the mobile service tower. The rocket is the launch More

KENNEDY SPACE CENTER, FLA. -- The first stage of a United Launch Alliance Delta II rocket is on its way to Launch Pad 17-B on Cape Canaveral Air Force Station in Florida. The rocket is the launch vehicle for the THEMIS spacecraft, consisting of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. After the first stage is in the mobile service tower on the pad, nine solid rocket boosters will be placed around the base of the first stage and attached in sets of three. THEMIS is scheduled to launch aboard the Delta II at 6:07 p.m. EST on Feb. 15. Photo credit: NASA/George Shelton KSC-07pd0022

KENNEDY SPACE CENTER, FLA. -- The first stage of a United Launch Alliance Delta II rocket is on its way to Launch Pad 17-B on Cape Canaveral Air Force Station in Florida. The rocket is the launch vehicle for More

KENNEDY SPACE CENTER, FLA. -- The first stage of a United Launch Alliance Delta II rocket arrives at the mobile service tower on Launch Pad 17-B at Cape Canaveral Air Force Station in Florida. The rocket is the launch vehicle for the THEMIS spacecraft, consisting of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. After the first stage is in the mobile service tower on the pad, nine solid rocket boosters will be placed around the base of the first stage and attached in sets of three. THEMIS is scheduled to launch aboard the Delta II at 6:07 p.m. EST on Feb. 15. Photo credit: NASA/George Shelton KSC-07pd0023

KENNEDY SPACE CENTER, FLA. -- The first stage of a United Launch Alliance Delta II rocket arrives at the mobile service tower on Launch Pad 17-B at Cape Canaveral Air Force Station in Florida. The rocket is th More

KENNEDY SPACE CENTER, FLA. -- On Launch Pad 17-B at Cape Canaveral Air Force Station in Florida, the United Launch Alliance Delta II rocket is moved inside the mobile service tower where nine solid rocket boosters will be attached in sets of three. The rocket is the launch vehicle for the THEMIS spacecraft, consisting of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch aboard the Delta II at 6:07 p.m. EST on Feb. 15. Photo credit: NASA/George Shelton KSC-07pd0030

KENNEDY SPACE CENTER, FLA. -- On Launch Pad 17-B at Cape Canaveral Air Force Station in Florida, the United Launch Alliance Delta II rocket is moved inside the mobile service tower where nine solid rocket boos More

KENNEDY SPACE CENTER, FLA. -- On Launch Pad 17-B at Cape Canaveral Air Force Station in Florida, a crane (foreground) raises the first stage of a United Launch Alliance Delta II rocket off its transporter to a vertical position. The rocket will then be lifted into the mobile service tower. The rocket is the launch vehicle for the THEMIS spacecraft, consisting of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. After the first stage is in the mobile service tower on the pad, nine solid rocket boosters will be placed around the base of the first stage and attached in sets of three. THEMIS is scheduled to launch aboard the Delta II at 6:07 p.m. EST on Feb. 15. Photo credit: NASA/George Shelton KSC-07pd0025

KENNEDY SPACE CENTER, FLA. -- On Launch Pad 17-B at Cape Canaveral Air Force Station in Florida, a crane (foreground) raises the first stage of a United Launch Alliance Delta II rocket off its transporter to a More

KENNEDY SPACE CENTER, FLA. -- In the Hazardous Processing Facility at Astrotech Space Operations, technicians prepare THEMIS probes for solar array illumination telemetry tests. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch aboard the Delta II at 6:07 p.m. EST on Feb. 15. Photo credit: NASA/George Shelton KSC-07pd0031

KENNEDY SPACE CENTER, FLA. -- In the Hazardous Processing Facility at Astrotech Space Operations, technicians prepare THEMIS probes for solar array illumination telemetry tests. THEMIS consists of five identic More

KENNEDY SPACE CENTER, FLA. -- In the Hazardous Processing Facility at Astrotech Space Operations, technicians prepare THEMIS probes for solar array illumination telemetry tests. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch aboard the Delta II at 6:07 p.m. EST on Feb. 15. Photo credit: NASA/George Shelton KSC-07pd0032

KENNEDY SPACE CENTER, FLA. -- In the Hazardous Processing Facility at Astrotech Space Operations, technicians prepare THEMIS probes for solar array illumination telemetry tests. THEMIS consists of five identic More

KENNEDY SPACE CENTER, FLA. -- In the Hazardous Processing Facility at Astrotech Space Operations, a technician observes one of the THEMIS probes as it undergoes solar array illumination telemetry testing. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch aboard the Delta II at 6:07 p.m. EST on Feb. 15. Photo credit: NASA/George Shelton KSC-07pd0035

KENNEDY SPACE CENTER, FLA. -- In the Hazardous Processing Facility at Astrotech Space Operations, a technician observes one of the THEMIS probes as it undergoes solar array illumination telemetry testing. THEMI More

KENNEDY SPACE CENTER, FLA. -- In the Hazardous Processing Facility at Astrotech Space Operations, a technician observes one of the THEMIS probes as it undergoes solar array illumination telemetry testing. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch aboard the Delta II at 6:07 p.m. EST on Feb. 15. Photo credit: NASA/George Shelton KSC-07pd0033

KENNEDY SPACE CENTER, FLA. -- In the Hazardous Processing Facility at Astrotech Space Operations, a technician observes one of the THEMIS probes as it undergoes solar array illumination telemetry testing. THEM More

KENNEDY SPACE CENTER, FLA. -- In the Hazardous Processing Facility at Astrotech Space Operations, one of the THEMIS probes undergoes solar array illumination telemetry testing. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch aboard the Delta II at 6:07 p.m. EST on Feb. 15. Photo credit: NASA/George Shelton KSC-07pd0034

KENNEDY SPACE CENTER, FLA. -- In the Hazardous Processing Facility at Astrotech Space Operations, one of the THEMIS probes undergoes solar array illumination telemetry testing. THEMIS consists of five identical More

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, technicians guide one of the THEMIS probes into position on the probe carrier. When all five probes are in place, the carrier will undergo spin-balance testing. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/George Shelton KSC-07pd0056

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, technicians guide one of the THEMIS probes into position on the probe carrier. When all five probes are in place, the carrier will undergo spin-bal More

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, technicians conduct white light inspection of the THEMIS probes. They will also undergo black light inspection. White light inspection assures the telemetry is operating. Black light inspection uses UVA fluorescence to detect possible particulate microcontamination, minute cracks or fluid leaks. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/George Shelton KSC-07pd0046

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, technicians conduct white light inspection of the THEMIS probes. They will also undergo black light inspection. White light inspection assures the More

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, technicians weigh one of the THEMIS probes. Next the probe will be installed on a probe carrier, along with is four mates, and then undergo spin-balance testing. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/George Shelton KSC-07pd0052

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, technicians weigh one of the THEMIS probes. Next the probe will be installed on a probe carrier, along with is four mates, and then undergo spin-ba More

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, technicians conduct white light inspection of the THEMIS probes. They will also undergo black light inspection. White light inspection assures the telemetry is operating. Black light inspection uses UVA fluorescence to detect possible particulate microcontamination, minute cracks or fluid leaks. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/George Shelton KSC-07pd0047

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, technicians conduct white light inspection of the THEMIS probes. They will also undergo black light inspection. White light inspection assures the More

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, technicians adjust connections of the overhead crane on one of the THEMIS probes. The probe and its other four mates will be lifted and installed on the probe carrier in the background. The probes will then undergo spin-balance testing. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/George Shelton KSC-07pd0051

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, technicians adjust connections of the overhead crane on one of the THEMIS probes. The probe and its other four mates will be lifted and installed o More

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, a worker prepares the THEMIS spacecraft for black/white light inspection. White light inspection assures the telemetry is operating. Black light inspection uses UVA fluorescence to detect possible particulate microcontamination, minute cracks or fluid leaks. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/George Shelton KSC-07pd0045

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, a worker prepares the THEMIS spacecraft for black/white light inspection. White light inspection assures the telemetry is operating. Black light in More

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, one of the five THEMIS probes is lifted from a scale. It will be moved to a probe carrier for installation, along with its four mates, and then undergo spin-balance testing. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/George Shelton KSC-07pd0053

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, one of the five THEMIS probes is lifted from a scale. It will be moved to a probe carrier for installation, along with its four mates, and then und More

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, technicians conduct black light inspection of the THEMIS probes. Black light inspection uses UVA fluorescence to detect possible particulate microcontamination, minute cracks or fluid leaks. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/George Shelton KSC-07pd0049

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, technicians conduct black light inspection of the THEMIS probes. Black light inspection uses UVA fluorescence to detect possible particulate microc More

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, a technician helps guide one of the THEMIS probes toward the probe carrier for installation. When all five probes are in place, the carrier will undergo spin-balance testing. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/George Shelton KSC-07pd0054

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, a technician helps guide one of the THEMIS probes toward the probe carrier for installation. When all five probes are in place, the carrier will un More

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, technicians conduct black light inspection of the THEMIS probes. Black light inspection uses UVA fluorescence to detect possible particulate microcontamination, minute cracks or fluid leaks. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/George Shelton KSC-07pd0050

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, technicians conduct black light inspection of the THEMIS probes. Black light inspection uses UVA fluorescence to detect possible particulate microc More

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, a worker prepares the THEMIS spacecraft for black/white light inspection. White light inspection assures the telemetry is operating. Black light inspection uses UVA fluorescence to detect possible particulate microcontamination, minute cracks or fluid leaks. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/George Shelton KSC-07pd0044

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, a worker prepares the THEMIS spacecraft for black/white light inspection. White light inspection assures the telemetry is operating. Black light in More

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, technicians conduct black light inspection of the THEMIS probes. Black light inspection uses UVA fluorescence to detect possible particulate microcontamination, minute cracks or fluid leaks. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/George Shelton KSC-07pd0048

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, technicians conduct black light inspection of the THEMIS probes. Black light inspection uses UVA fluorescence to detect possible particulate microc More

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, technicians guide one of the THEMIS probes into position on the probe carrier. When all five probes are in place, the carrier will undergo spin-balance testing. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/George Shelton KSC-07pd0055

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, technicians guide one of the THEMIS probes into position on the probe carrier. When all five probes are in place, the carrier will undergo spin-bala More

KENNEDY SPACE CENTER, FLA. -- In the Hazardous Processing Facility at Astrotech Space Operations, a worker checks data on the integrated THEMIS spacecraft sitting on the spin table. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/George Shelton KSC-07pd0070

KENNEDY SPACE CENTER, FLA. -- In the Hazardous Processing Facility at Astrotech Space Operations, a worker checks data on the integrated THEMIS spacecraft sitting on the spin table. THEMIS consists of five id More

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, the integrated THEMIS spacecraft is on ready for spin-balance testing. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/George Shelton KSC-07pd0074

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, the integrated THEMIS spacecraft is on ready for spin-balance testing. THEMIS consists of five identical probes, the largest number of scientific s More

KENNEDY SPACE CENTER, FLA. -- One of nine solid rocket boosters is lifted into the mobile service tower on Launch Pad 17-B at Cape Canaveral Air Force Station. The boosters are being installed around the United Launch Alliance Delta II rocket for launch of the THEMIS integrated spacecraft. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/Jack Pfaller KSC-07pd0078

KENNEDY SPACE CENTER, FLA. -- One of nine solid rocket boosters is lifted into the mobile service tower on Launch Pad 17-B at Cape Canaveral Air Force Station. The boosters are being installed around the Uni More

KENNEDY SPACE CENTER, FLA. -- In the Hazardous Processing Facility at Astrotech Space Operations, workers attach an overhead crane to the integrated THEMIS spacecraft. The carrier is being moved to a spin table for spin-balance testing. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/George Shelton KSC-07pd0067

KENNEDY SPACE CENTER, FLA. -- In the Hazardous Processing Facility at Astrotech Space Operations, workers attach an overhead crane to the integrated THEMIS spacecraft. The carrier is being moved to a spin t More

KENNEDY SPACE CENTER, FLA. -- Solid rocket boosters are clustered around the base of the United Launch Alliance Delta II rocket. A total of nine will assist in the launch of the THEMIS integrated spacecraft. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/Jack Pfaller KSC-07pd0083

KENNEDY SPACE CENTER, FLA. -- Solid rocket boosters are clustered around the base of the United Launch Alliance Delta II rocket. A total of nine will assist in the launch of the THEMIS integrated spacecraft. More

KENNEDY SPACE CENTER, FLA. -- Another solid rocket booster is raised to a vertical position for lifting into the mobile service tower on Launch Pad 17-B at Cape Canaveral Air Force Station. The boosters are being installed around the United Launch Alliance Delta II rocket for launch of the THEMIS integrated spacecraft. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/Jack Pfaller KSC-07pd0079

KENNEDY SPACE CENTER, FLA. -- Another solid rocket booster is raised to a vertical position for lifting into the mobile service tower on Launch Pad 17-B at Cape Canaveral Air Force Station. The boosters are More

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, workers look over the integrated THEMIS spacecraft before spin-balance testing. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/George Shelton KSC-07pd0073

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, workers look over the integrated THEMIS spacecraft before spin-balance testing. THEMIS consists of five identical probes, the largest number of sci More

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, the integrated THEMIS spacecraft is ready for spin-balance testing. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/George Shelton KSC-07pd0072

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, the integrated THEMIS spacecraft is ready for spin-balance testing. THEMIS consists of five identical probes, the largest number of scientific sate More

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, workers prepare the integrated THEMIS spacecraft for spin-balance testing. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/George Shelton KSC-07pd0071

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, workers prepare the integrated THEMIS spacecraft for spin-balance testing. THEMIS consists of five identical probes, the largest number of scient More

KENNEDY SPACE CENTER, FLA. -- A solid rocket booster is lifted into the mobile service tower on Launch Pad 17-B at Cape Canaveral Air Force Station, joining another already there. The boosters are being installed around the United Launch Alliance Delta II rocket for launch of the THEMIS integrated spacecraft. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/Jack Pfaller KSC-07pd0080

KENNEDY SPACE CENTER, FLA. -- A solid rocket booster is lifted into the mobile service tower on Launch Pad 17-B at Cape Canaveral Air Force Station, joining another already there. The boosters are being inst More

KENNEDY SPACE CENTER, FLA. -- In the Hazardous Processing Facility at Astrotech Space Operations, workers get ready to move the integrated THEMIS spacecraft to the spin table in the foreground. There it will undergo spin-balance testing. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/George Shelton KSC-07pd0068

KENNEDY SPACE CENTER, FLA. -- In the Hazardous Processing Facility at Astrotech Space Operations, workers get ready to move the integrated THEMIS spacecraft to the spin table in the foreground. There it will More

KENNEDY SPACE CENTER, FLA. -- Solid rocket boosters are clustered around the base of the United Launch Alliance Delta II rocket in the mobile service tower. A total of nine will assist in the launch of the THEMIS integrated spacecraft. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/Jack Pfaller KSC-07pd0085

KENNEDY SPACE CENTER, FLA. -- Solid rocket boosters are clustered around the base of the United Launch Alliance Delta II rocket in the mobile service tower. A total of nine will assist in the launch of the TH More

KENNEDY SPACE CENTER, FLA. -- Another solid rocket booster is raised to a vertical position for lifting into the mobile service tower on Launch Pad 17-B at Cape Canaveral Air Force Station. The boosters are being installed around the United Launch Alliance Delta II rocket for launch of the THEMIS integrated spacecraft. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/Jack Pfaller KSC-07pd0081

KENNEDY SPACE CENTER, FLA. -- Another solid rocket booster is raised to a vertical position for lifting into the mobile service tower on Launch Pad 17-B at Cape Canaveral Air Force Station. The boosters are More

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, the media are dressed in clean room, or bunny, suits to photograph the integrated THEMIS spacecraft. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/George Shelton KSC-07pd0076

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, the media are dressed in clean room, or bunny, suits to photograph the integrated THEMIS spacecraft. THEMIS consists of five identical probes, the More

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, the integrated THEMIS spacecraft is spinning on the spin table, part of spin-balance testing. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/George Shelton KSC-07pd0077

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, the integrated THEMIS spacecraft is spinning on the spin table, part of spin-balance testing. THEMIS consists of five identical probes, the largest More

KENNEDY SPACE CENTER, FLA. -- In the Hazardous Processing Facility at Astrotech Space Operations, workers prepare the integrated THEMIS spacecraft to be moved to a spin table for spin-balance testing. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/George Shelton KSC-07pd0066

KENNEDY SPACE CENTER, FLA. -- In the Hazardous Processing Facility at Astrotech Space Operations, workers prepare the integrated THEMIS spacecraft to be moved to a spin table for spin-balance testing. THEMIS More

KENNEDY SPACE CENTER, FLA. -- Solid rocket boosters left and right are being added to those already clustered around the base of the United Launch Alliance Delta II rocket. A total of nine will assist in the launch of the THEMIS integrated spacecraft. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/Jack Pfaller KSC-07pd0084

KENNEDY SPACE CENTER, FLA. -- Solid rocket boosters left and right are being added to those already clustered around the base of the United Launch Alliance Delta II rocket. A total of nine will assist in the l More

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, the media are dressed in clean room, or bunny, suits to photograph the integrated THEMIS spacecraft. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/George Shelton KSC-07pd0075

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, the media are dressed in clean room, or bunny, suits to photograph the integrated THEMIS spacecraft. THEMIS consists of five identical probes, the More

KENNEDY SPACE CENTER, FLA. -- In the Hazardous Processing Facility at Astrotech Space Operations, workers guide the integrated THEMIS spacecraft onto the spin table in the foreground. There it will undergo spin-balance testing. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/George Shelton KSC-07pd0069

KENNEDY SPACE CENTER, FLA. -- In the Hazardous Processing Facility at Astrotech Space Operations, workers guide the integrated THEMIS spacecraft onto the spin table in the foreground. There it will undergo s More

KENNEDY SPACE CENTER, FLA. -- Solid rocket boosters are clustered around the base of the United Launch Alliance Delta II rocket. A total of nine will assist in the launch of the THEMIS integrated spacecraft. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/Jack Pfaller KSC-07pd0082

KENNEDY SPACE CENTER, FLA. -- Solid rocket boosters are clustered around the base of the United Launch Alliance Delta II rocket. A total of nine will assist in the launch of the THEMIS integrated spacecraft. More

KENNEDY SPACE CENTER, FLA. -- The covered Delta II second stage arrives at a checkout hangar on Cape Canaveral Air Force Station in Florida in preparation for transfer to Pad 17-B. At the pad, it will be lifted into the mobile service tower and mated with the first stage already in place. The Delta II is the launch vehicle for the THEMIS spacecraft. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/George Shelton KSC-07pd0121

KENNEDY SPACE CENTER, FLA. -- The covered Delta II second stage arrives at a checkout hangar on Cape Canaveral Air Force Station in Florida in preparation for transfer to Pad 17-B. At the pad, it will be lift More

KENNEDY SPACE CENTER, FLA. -- The covered Delta II second stage arrives at a checkout hangar on Cape Canaveral Air Force Station in Florida in preparation for transfer to Pad 17-B. At the pad, it will be lifted into the mobile service tower and mated with the first stage already in place. The Delta II is the launch vehicle for the THEMIS spacecraft. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/George Shelton KSC-07pd0122

KENNEDY SPACE CENTER, FLA. -- The covered Delta II second stage arrives at a checkout hangar on Cape Canaveral Air Force Station in Florida in preparation for transfer to Pad 17-B. At the pad, it will be lift More

KENNEDY SPACE CENTER, FLA. -- On Pad 17-B at Cape Canaveral Air Force Station, the Delta II second stage arrives at level 9 of the tower. The second stage will be moved inside and mated with the first stage already in place. The Delta II is the launch vehicle for the THEMIS spacecraft THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/George Shelton KSC-07pd0128

KENNEDY SPACE CENTER, FLA. -- On Pad 17-B at Cape Canaveral Air Force Station, the Delta II second stage arrives at level 9 of the tower. The second stage will be moved inside and mated with the first stage a More

KENNEDY SPACE CENTER, FLA. -- On Pad 17-B at Cape Canaveral Air Force Station, the Delta II second stage is being lowered toward the Delta II first stage, already in place inside the mobile service tower. The Delta II is the launch vehicle for the THEMIS spacecraft. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/George Shelton KSC-07pd0131

KENNEDY SPACE CENTER, FLA. -- On Pad 17-B at Cape Canaveral Air Force Station, the Delta II second stage is being lowered toward the Delta II first stage, already in place inside the mobile service tower. The More

KENNEDY SPACE CENTER, FLA. -- On Pad 17-B at Cape Canaveral Air Force Station, the Delta II second stage is being lifted alongside the mobile service tower. Once inside, it will be mated with the first stage already in place. The Delta II is the launch vehicle for the THEMIS spacecraft. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/George Shelton KSC-07pd0126

KENNEDY SPACE CENTER, FLA. -- On Pad 17-B at Cape Canaveral Air Force Station, the Delta II second stage is being lifted alongside the mobile service tower. Once inside, it will be mated with the first stage More

KENNEDY SPACE CENTER, FLA. -- Inside the mobile service tower on Pad 17-B at Cape Canaveral Air Force Station, the Delta II second stage is mated with the first stage. The Delta II is the launch vehicle for the THEMIS spacecraft. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/George Shelton KSC-07pd0132

KENNEDY SPACE CENTER, FLA. -- Inside the mobile service tower on Pad 17-B at Cape Canaveral Air Force Station, the Delta II second stage is mated with the first stage. The Delta II is the launch vehicle for t More

KENNEDY SPACE CENTER, FLA. -- On Pad 17-B at Cape Canaveral Air Force Station, workers attach an overhead crane to the Delta II second stage in order to raise it to vertical. It will be lifted into the mobile service tower and mated with the first stage already in place. The Delta II is the launch vehicle for the THEMIS spacecraft. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/George Shelton KSC-07pd0123

KENNEDY SPACE CENTER, FLA. -- On Pad 17-B at Cape Canaveral Air Force Station, workers attach an overhead crane to the Delta II second stage in order to raise it to vertical. It will be lifted into the mobile More

KENNEDY SPACE CENTER, FLA. -- On Pad 17-B at Cape Canaveral Air Force Station, the Delta II second stage is lifted toward the mobile service tower. Once inside, it will be mated with the first stage already in place. The Delta II is the launch vehicle for the THEMIS spacecraft. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/George Shelton KSC-07pd0125

KENNEDY SPACE CENTER, FLA. -- On Pad 17-B at Cape Canaveral Air Force Station, the Delta II second stage is lifted toward the mobile service tower. Once inside, it will be mated with the first stage already i More

KENNEDY SPACE CENTER, FLA. -- On Pad 17-B at Cape Canaveral Air Force Station, workers stand by while an overhead crane lifts the Delta II second stage to a vertical position. The second stage will be lifted into the mobile service tower and mated with the first stage already in place. The Delta II is the launch vehicle for the THEMIS spacecraft. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/George Shelton KSC-07pd0124

KENNEDY SPACE CENTER, FLA. -- On Pad 17-B at Cape Canaveral Air Force Station, workers stand by while an overhead crane lifts the Delta II second stage to a vertical position. The second stage will be lifted More

KENNEDY SPACE CENTER, FLA. -- On Pad 17-B at Cape Canaveral Air Force Station, the Delta II second stage is moved inside level 9 of the tower. It will be mated with the first stage already in place. The Delta II is the launch vehicle for the THEMIS spacecraft. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/George Shelton KSC-07pd0129

KENNEDY SPACE CENTER, FLA. -- On Pad 17-B at Cape Canaveral Air Force Station, the Delta II second stage is moved inside level 9 of the tower. It will be mated with the first stage already in place. The Delt More

KENNEDY SPACE CENTER, FLA. -- On Pad 17-B at Cape Canaveral Air Force Station, the Delta II second stage is being lifted alongside the mobile service tower. Once inside, it will be mated with the first stage already in place. The Delta II is the launch vehicle for the THEMIS spacecraft. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/George Shelton KSC-07pd0127

KENNEDY SPACE CENTER, FLA. -- On Pad 17-B at Cape Canaveral Air Force Station, the Delta II second stage is being lifted alongside the mobile service tower. Once inside, it will be mated with the first stage More

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, technicians help lower the THEMIS spacecraft onto the Delta II upper stage booster. Once mated, the spacecraft will then be installed into its transportation canister and moved to Launch Complex 17 on Cape Canaveral Air Force Station for mating with the Delta II. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 Pad 17-B. Photo credit: NASA/Troy Cryder KSC-07pd0189

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, technicians help lower the THEMIS spacecraft onto the Delta II upper stage booster. Once mated, the spacecraft will then be installed into its tran More

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, the THEMIS spacecraft (background) is being lifted to move it to the Delta II upper stage booster (foreground) for mating. The spacecraft will then be installed into its transportation canister and moved to Launch Complex 17 on Cape Canaveral Air Force Station for mating with the Delta II. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 Pad 17-B. Photo credit: NASA/Troy Cryder KSC-07pd0186

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, the THEMIS spacecraft (background) is being lifted to move it to the Delta II upper stage booster (foreground) for mating. The spacecraft will the More

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, technicians help lower the THEMIS spacecraft the last few inches onto the Delta II upper stage booster. Once mated, the spacecraft will then be installed into its transportation canister and moved to Launch Complex 17 on Cape Canaveral Air Force Station for mating with the Delta II. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 Pad 17-B. Photo credit: NASA/Troy Cryder KSC-07pd0190

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, technicians help lower the THEMIS spacecraft the last few inches onto the Delta II upper stage booster. Once mated, the spacecraft will then be ins More

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, technicians lower the THEMIS spacecraft onto the Delta II upper stage booster. Once mated, the spacecraft will then be installed into its transportation canister and moved to Launch Complex 17 on Cape Canaveral Air Force Station for mating with the Delta II. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 Pad 17-B. Photo credit: NASA/Troy Cryder KSC-07pd0191

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, technicians lower the THEMIS spacecraft onto the Delta II upper stage booster. Once mated, the spacecraft will then be installed into its transport More

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, technicians help lower the THEMIS spacecraft toward the Delta II upper stage booster. Once mated, the spacecraft will then be installed into its transportation canister and moved to Launch Complex 17 on Cape Canaveral Air Force Station for mating with the Delta II. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 Pad 17-B. Photo credit: NASA/Troy Cryder KSC-07pd0188

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, technicians help lower the THEMIS spacecraft toward the Delta II upper stage booster. Once mated, the spacecraft will then be installed into its tr More

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, technicians help guide the overhead crane carrying the THEMIS spacecraft toward the Delta II upper stage booster at right. Once mated, the spacecraft will then be installed into its transportation canister and moved to Launch Complex 17 on Cape Canaveral Air Force Station for mating with the Delta II. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 Pad 17-B. Photo credit: NASA/Troy Cryder KSC-07pd0187

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, technicians help guide the overhead crane carrying the THEMIS spacecraft toward the Delta II upper stage booster at right. Once mated, the spacecr More

KENNEDY SPACE CENTER, FLA. -- A worker in the high bay at Astrotech Space Operations places a lower panel of the transportation canister around the THEMIS spacecraft and upper stage booster. When THEMIS is completely enclosed, it will be transported to Launch Complex 17-B for mating with its launch vehicle. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Pad 17-B at Cape Canaveral Air Force Station aboard a Boeing Delta II rocket managed by the United Launch Alliance. Photo credit: NASA/Troy Cryder KSC-07pd0207

KENNEDY SPACE CENTER, FLA. -- A worker in the high bay at Astrotech Space Operations places a lower panel of the transportation canister around the THEMIS spacecraft and upper stage booster. When THEMIS is c More

KENNEDY SPACE CENTER, FLA. -- With all lower panels of the transportation canister in place around the THEMIS spacecraft and upper stage booster, workers at left prepare to move the overhead crane above them to the cylindrical upper canister and place it over THEMIS. When THEMIS is completely enclosed, it will be transported to Launch Complex 17-B for mating with its launch vehicle. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Pad 17-B at Cape Canaveral Air Force Station aboard a Boeing Delta II rocket managed by the United Launch Alliance. Photo credit: NASA/Troy Cryder KSC-07pd0208

KENNEDY SPACE CENTER, FLA. -- With all lower panels of the transportation canister in place around the THEMIS spacecraft and upper stage booster, workers at left prepare to move the overhead crane above them More

KENNEDY SPACE CENTER, FLA. -- In the high bay at Astrotech Space Operations, workers secure the upper cylindrical canister to the lower panels already in place around the THEMIS spacecraft and upper stage booster. When completely enclosed, THEMIS will be transported to Launch Complex 17-B for mating with its launch vehicle. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Pad 17-B at Cape Canaveral Air Force Station aboard a Boeing Delta II rocket managed by the United Launch Alliance. Photo credit: NASA/Troy Cryder KSC-07pd0213

KENNEDY SPACE CENTER, FLA. -- In the high bay at Astrotech Space Operations, workers secure the upper cylindrical canister to the lower panels already in place around the THEMIS spacecraft and upper stage bo More

KENNEDY SPACE CENTER, FLA. -- In the high bay at Astrotech Space Operations, workers guide the suspended upper canister toward the THEMIS spacecraft and upper stage booster at right. When the upper and lower canisters are joined, the THEMIS will be completely enclosed and will be transported to Launch Complex 17-B for mating with its launch vehicle. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Pad 17-B at Cape Canaveral Air Force Station aboard a Boeing Delta II rocket managed by the United Launch Alliance. Photo credit: NASA/Troy Cryder KSC-07pd0209

KENNEDY SPACE CENTER, FLA. -- In the high bay at Astrotech Space Operations, workers guide the suspended upper canister toward the THEMIS spacecraft and upper stage booster at right. When the upper and lower More

KENNEDY SPACE CENTER, FLA. -- In the high bay at Astrotech Space Operations, the upper cylindrical canister is lowered toward the THEMIS spacecraft and upper stage booster below. When the upper and lower canisters are joined, the THEMIS will be completely enclosed and will be transported to Launch Complex 17-B for mating with its launch vehicle. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Pad 17-B at Cape Canaveral Air Force Station aboard a Boeing Delta II rocket managed by the United Launch Alliance. Photo credit: NASA/Troy Cryder KSC-07pd0210

KENNEDY SPACE CENTER, FLA. -- In the high bay at Astrotech Space Operations, the upper cylindrical canister is lowered toward the THEMIS spacecraft and upper stage booster below. When the upper and lower cani More

KENNEDY SPACE CENTER, FLA. -- In the high bay at Astrotech Space Operations, workers prepare to join the upper cylindrical canister to the lower panels already in place around the THEMIS spacecraft and upper stage booster. When completely enclosed, THEMIS will be transported to Launch Complex 17-B for mating with its launch vehicle. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Pad 17-B at Cape Canaveral Air Force Station aboard a Boeing Delta II rocket managed by the United Launch Alliance. Photo credit: NASA/Troy Cryder KSC-07pd0212

KENNEDY SPACE CENTER, FLA. -- In the high bay at Astrotech Space Operations, workers prepare to join the upper cylindrical canister to the lower panels already in place around the THEMIS spacecraft and upper More

KENNEDY SPACE CENTER, FLA. -- In the high bay at Astrotech Space Operations, workers guide the upper canister toward the THEMIS spacecraft and upper stage booster below. The upper canister will be joined to the lower panels already in place. Then, THEMIS will be transported to Launch Complex 17-B for mating with its launch vehicle. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Pad 17-B at Cape Canaveral Air Force Station aboard a Boeing Delta II rocket managed by the United Launch Alliance. Photo credit: NASA/Troy Cryder KSC-07pd0211

KENNEDY SPACE CENTER, FLA. -- In the high bay at Astrotech Space Operations, workers guide the upper canister toward the THEMIS spacecraft and upper stage booster below. The upper canister will be joined to t More

KENNEDY SPACE CENTER, FLA. -- In the upper level of the mobile service tower on Launch Pad 17-B at Cape Canaveral Air Force Station, workers help maneuver the THEMIS spacecraft inside. THEMIS will then be encapsulated and mated with the third stage of the Delta II rocket. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. The THEMIS mission is to investigate what causes auroras in the Earth's atmosphere to dramatically change from slowly shimmering waves of light to wildly shifting streaks of color. Discovering what causes auroras to change will provide scientists with important details on how the planet's magnetosphere works and the important Sun-Earth connection. THEMIS is scheduled to launch aboard a Delta II rocket on Feb. 15 during a window extending from 6:08 to 6:27 p.m. Photo credit: NASA/Amanda Diller KSC-07pd0246

KENNEDY SPACE CENTER, FLA. -- In the upper level of the mobile service tower on Launch Pad 17-B at Cape Canaveral Air Force Station, workers help maneuver the THEMIS spacecraft inside. THEMIS will then be enc More

KENNEDY SPACE CENTER, FLA. -- Workers inside the mobile service tower on Launch Pad 17-B at Cape Canaveral Air Force Station watch as the upper canister is lifted away from the THEMIS spacecraft. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. The THEMIS mission is to investigate what causes auroras in the Earth's atmosphere to dramatically change from slowly shimmering waves of light to wildly shifting streaks of color. Discovering what causes auroras to change will provide scientists with important details on how the planet's magnetosphere works and the important Sun-Earth connection. THEMIS is scheduled to launch aboard a Delta II rocket on Feb. 15 during a window extending from 6:08 to 6:27 p.m. Photo credit: NASA/Amanda Diller KSC-07pd0254

KENNEDY SPACE CENTER, FLA. -- Workers inside the mobile service tower on Launch Pad 17-B at Cape Canaveral Air Force Station watch as the upper canister is lifted away from the THEMIS spacecraft. THEMIS consist More

KENNEDY SPACE CENTER, FLA. -- Inside the mobile service tower on Launch Pad 17-B at Cape Canaveral Air Force Station, workers erect a protective screen above the THEMIS spacecraft to preserve a clean-room environment. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. The THEMIS mission is to investigate what causes auroras in the Earth's atmosphere to dramatically change from slowly shimmering waves of light to wildly shifting streaks of color. Discovering what causes auroras to change will provide scientists with important details on how the planet's magnetosphere works and the important Sun-Earth connection. THEMIS is scheduled to launch aboard a Delta II rocket on Feb. 15 during a window extending from 6:08 to 6:27 p.m. Photo credit: NASA/Amanda Diller KSC-07pd0256

KENNEDY SPACE CENTER, FLA. -- Inside the mobile service tower on Launch Pad 17-B at Cape Canaveral Air Force Station, workers erect a protective screen above the THEMIS spacecraft to preserve a clean-room env More

KENNEDY SPACE CENTER, FLA. -- Workers inside the mobile service tower on Launch Pad 17-B at Cape Canaveral Air Force Station maneuver the upper canister away from the THEMIS spacecraft. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. The THEMIS mission is to investigate what causes auroras in the Earth's atmosphere to dramatically change from slowly shimmering waves of light to wildly shifting streaks of color. Discovering what causes auroras to change will provide scientists with important details on how the planet's magnetosphere works and the important Sun-Earth connection. THEMIS is scheduled to launch aboard a Delta II rocket on Feb. 15 during a window extending from 6:08 to 6:27 p.m. Photo credit: NASA/Amanda Diller KSC-07pd0253

KENNEDY SPACE CENTER, FLA. -- Workers inside the mobile service tower on Launch Pad 17-B at Cape Canaveral Air Force Station maneuver the upper canister away from the THEMIS spacecraft. THEMIS consists of fiv More

KENNEDY SPACE CENTER, FLA. -- Workers inside the mobile service tower on Launch Pad 17-B at Cape Canaveral Air Force Station help maneuver the upper canister away from the opening. The canister was removed from around the THEMIS spacecraft. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. The THEMIS mission is to investigate what causes auroras in the Earth's atmosphere to dramatically change from slowly shimmering waves of light to wildly shifting streaks of color. Discovering what causes auroras to change will provide scientists with important details on how the planet's magnetosphere works and the important Sun-Earth connection. THEMIS is scheduled to launch aboard a Delta II rocket on Feb. 15 during a window extending from 6:08 to 6:27 p.m. Photo credit: NASA/Amanda Diller KSC-07pd0255

KENNEDY SPACE CENTER, FLA. -- Workers inside the mobile service tower on Launch Pad 17-B at Cape Canaveral Air Force Station help maneuver the upper canister away from the opening. The canister was removed fro More

KENNEDY SPACE CENTER, FLA. -- Inside the mobile service tower on Launch Pad 17-B at Cape Canaveral Air Force Station, workers remove the protective cover surrounding the THEMIS spacecraft. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. The THEMIS mission is to investigate what causes auroras in the Earth's atmosphere to dramatically change from slowly shimmering waves of light to wildly shifting streaks of color. Discovering what causes auroras to change will provide scientists with important details on how the planet's magnetosphere works and the important Sun-Earth connection. THEMIS is scheduled to launch aboard a Delta II rocket on Feb. 15 during a window extending from 6:08 to 6:27 p.m. Photo credit: NASA/Amanda Diller KSC-07pd0249

KENNEDY SPACE CENTER, FLA. -- Inside the mobile service tower on Launch Pad 17-B at Cape Canaveral Air Force Station, workers remove the protective cover surrounding the THEMIS spacecraft. THEMIS consists of More

KENNEDY SPACE CENTER, FLA. -- Inside the mobile service tower on Launch Pad 17-B at Cape Canaveral Air Force Station, workers remove the protective cover surrounding the THEMIS spacecraft. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. The THEMIS mission is to investigate what causes auroras in the Earth's atmosphere to dramatically change from slowly shimmering waves of light to wildly shifting streaks of color. Discovering what causes auroras to change will provide scientists with important details on how the planet's magnetosphere works and the important Sun-Earth connection. THEMIS is scheduled to launch aboard a Delta II rocket on Feb. 15 during a window extending from 6:08 to 6:27 p.m. Photo credit: NASA/Amanda Diller KSC-07pd0250

KENNEDY SPACE CENTER, FLA. -- Inside the mobile service tower on Launch Pad 17-B at Cape Canaveral Air Force Station, workers remove the protective cover surrounding the THEMIS spacecraft. THEMIS consists of More

KENNEDY SPACE CENTER, FLA. -- A worker inside the mobile service tower on Launch Pad 17-B at Cape Canaveral Air Force Station examines the Delta II upper stage booster mated to the THEMIS spacecraft above. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. The THEMIS mission is to investigate what causes auroras in the Earth's atmosphere to dramatically change from slowly shimmering waves of light to wildly shifting streaks of color. Discovering what causes auroras to change will provide scientists with important details on how the planet's magnetosphere works and the important Sun-Earth connection. THEMIS is scheduled to launch aboard a Delta II rocket on Feb. 15 during a window extending from 6:08 to 6:27 p.m. Photo credit: NASA/Amanda Diller KSC-07pd0259

KENNEDY SPACE CENTER, FLA. -- A worker inside the mobile service tower on Launch Pad 17-B at Cape Canaveral Air Force Station examines the Delta II upper stage booster mated to the THEMIS spacecraft above. T More

KENNEDY SPACE CENTER, FLA. -- The THEMIS spacecraft arrives on Launch Pad 17-B at Cape Canaveral Air Force Station. The spacecraft will be lifted into the mobile service tower and, after encapsulation, mated with the third stage of the Delta II rocket. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. The THEMIS mission is to investigate what causes auroras in the Earth's atmosphere to dramatically change from slowly shimmering waves of light to wildly shifting streaks of color. Discovering what causes auroras to change will provide scientists with important details on how the planet's magnetosphere works and the important Sun-Earth connection. THEMIS is scheduled to launch aboard a Delta II rocket on Feb. 15 during a window extending from 6:08 to 6:27 p.m. Photo credit: NASA/Amanda Diller KSC-07pd0241

KENNEDY SPACE CENTER, FLA. -- The THEMIS spacecraft arrives on Launch Pad 17-B at Cape Canaveral Air Force Station. The spacecraft will be lifted into the mobile service tower and, after encapsulation, mated More

KENNEDY SPACE CENTER, FLA. -- In the upper level of the mobile service tower on Launch Pad 17-B at Cape Canaveral Air Force Station, workers help maneuver the THEMIS spacecraft into place. They will next remove the protective cover before encapsulating and mating the spacecraft with the third stage of the Delta II rocket. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. The THEMIS mission is to investigate what causes auroras in the Earth's atmosphere to dramatically change from slowly shimmering waves of light to wildly shifting streaks of color. Discovering what causes auroras to change will provide scientists with important details on how the planet's magnetosphere works and the important Sun-Earth connection. THEMIS is scheduled to launch aboard a Delta II rocket on Feb. 15 during a window extending from 6:08 to 6:27 p.m. Photo credit: NASA/Amanda Diller KSC-07pd0247

KENNEDY SPACE CENTER, FLA. -- In the upper level of the mobile service tower on Launch Pad 17-B at Cape Canaveral Air Force Station, workers help maneuver the THEMIS spacecraft into place. They will next remo More

KENNEDY SPACE CENTER, FLA. -- In the upper level of the mobile service tower on Launch Pad 17-B at Cape Canaveral Air Force Station, workers wait for the THEMIS spacecraft (background) to be lifted and moved inside. THEMIS will then be encapsulated and mated with the third stage of the Delta II rocket. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. The THEMIS mission is to investigate what causes auroras in the Earth's atmosphere to dramatically change from slowly shimmering waves of light to wildly shifting streaks of color. Discovering what causes auroras to change will provide scientists with important details on how the planet's magnetosphere works and the important Sun-Earth connection. THEMIS is scheduled to launch aboard a Delta II rocket on Feb. 15 during a window extending from 6:08 to 6:27 p.m. Photo credit: NASA/Amanda Diller KSC-07pd0245

KENNEDY SPACE CENTER, FLA. -- In the upper level of the mobile service tower on Launch Pad 17-B at Cape Canaveral Air Force Station, workers wait for the THEMIS spacecraft (background) to be lifted and moved i More

KENNEDY SPACE CENTER, FLA. -- Workers inside the mobile service tower on Launch Pad 17-B at Cape Canaveral Air Force Station prepare to remove the canister surrounding the THEMIS spacecraft. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. The THEMIS mission is to investigate what causes auroras in the Earth's atmosphere to dramatically change from slowly shimmering waves of light to wildly shifting streaks of color. Discovering what causes auroras to change will provide scientists with important details on how the planet's magnetosphere works and the important Sun-Earth connection. THEMIS is scheduled to launch aboard a Delta II rocket on Feb. 15 during a window extending from 6:08 to 6:27 p.m. Photo credit: NASA/Amanda Diller KSC-07pd0252

KENNEDY SPACE CENTER, FLA. -- Workers inside the mobile service tower on Launch Pad 17-B at Cape Canaveral Air Force Station prepare to remove the canister surrounding the THEMIS spacecraft. THEMIS consists More

KENNEDY SPACE CENTER, FLA. -- On Launch Pad 17-B at Cape Canaveral Air Force Station, technicians stand by as the THEMIS spacecraft is lifted off its transporter. The spacecraft will be lifted into the mobile service tower and, after encapsulation, mated with the third stage of the Delta II rocket. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. The THEMIS mission is to investigate what causes auroras in the Earth's atmosphere to dramatically change from slowly shimmering waves of light to wildly shifting streaks of color. Discovering what causes auroras to change will provide scientists with important details on how the planet's magnetosphere works and the important Sun-Earth connection. THEMIS is scheduled to launch aboard a Delta II rocket on Feb. 15 during a window extending from 6:08 to 6:27 p.m. Photo credit: NASA/Amanda Diller KSC-07pd0242

KENNEDY SPACE CENTER, FLA. -- On Launch Pad 17-B at Cape Canaveral Air Force Station, technicians stand by as the THEMIS spacecraft is lifted off its transporter. The spacecraft will be lifted into the mobil More

KENNEDY SPACE CENTER, FLA. -- In the upper level of the mobile service tower on Launch Pad 17-B at Cape Canaveral Air Force Station, workers help maneuver the THEMIS spacecraft into place. They will next remove the protective cover before encapsulating and mating the spacecraft with the third stage of the Delta II rocket. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. The THEMIS mission is to investigate what causes auroras in the Earth's atmosphere to dramatically change from slowly shimmering waves of light to wildly shifting streaks of color. Discovering what causes auroras to change will provide scientists with important details on how the planet's magnetosphere works and the important Sun-Earth connection. THEMIS is scheduled to launch aboard a Delta II rocket on Feb. 15 during a window extending from 6:08 to 6:27 p.m. Photo credit: NASA/Amanda Diller KSC-07pd0248

KENNEDY SPACE CENTER, FLA. -- In the upper level of the mobile service tower on Launch Pad 17-B at Cape Canaveral Air Force Station, workers help maneuver the THEMIS spacecraft into place. They will next remo More

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusville, Fla., the THEMIS spacecraft is secure inside a protective cover for its transfer to Launch Complex 17 on Cape Canaveral Air Force Station. On Launch Pad 17-B, the spacecraft will be mated with the third stage of the Delta II rocket. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. The THEMIS mission is to investigate what causes auroras in the Earth's atmosphere to dramatically change from slowly shimmering waves of light to wildly shifting streaks of color. Discovering what causes auroras to change will provide scientists with important details on how the planet's magnetosphere works and the important Sun-Earth connection. THEMIS is scheduled to launch aboard a Delta II rocket on Feb. 15 during a window extending from 6:08 to 6:27 p.m. Photo credit: NASA/Amanda Diller KSC-07pd0238

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusville, Fla., the THEMIS spacecraft is secure inside a protective cover for its transfer to Launch Complex 17 on Cape Canaveral Air Force Stat More

KENNEDY SPACE CENTER, FLA. -- A transport vehicle moves the covered THEMIS spacecraft away from Astrotech Space Operations in Titusville, Fla., on the start of its journey to Launch Complex 17 on Cape Canaveral Air Force Station. On Launch Pad 17-B, the spacecraft will be mated with the third stage of the Delta II rocket. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. The THEMIS mission is to investigate what causes auroras in the Earth's atmosphere to dramatically change from slowly shimmering waves of light to wildly shifting streaks of color. Discovering what causes auroras to change will provide scientists with important details on how the planet's magnetosphere works and the important Sun-Earth connection. THEMIS is scheduled to launch aboard a Delta II rocket on Feb. 15 during a window extending from 6:08 to 6:27 p.m. Photo credit: NASA/Amanda Diller KSC-07pd0239

KENNEDY SPACE CENTER, FLA. -- A transport vehicle moves the covered THEMIS spacecraft away from Astrotech Space Operations in Titusville, Fla., on the start of its journey to Launch Complex 17 on Cape Canavera More

KENNEDY SPACE CENTER, FLA. -- On Launch Pad 17-B at Cape Canaveral Air Force Station, the THEMIS spacecraft is lifted up alongside the mobile service tower. Once inside, THEMIS will be encapsulated and mated with the third stage of the Delta II rocket. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. The THEMIS mission is to investigate what causes auroras in the Earth's atmosphere to dramatically change from slowly shimmering waves of light to wildly shifting streaks of color. Discovering what causes auroras to change will provide scientists with important details on how the planet's magnetosphere works and the important Sun-Earth connection. THEMIS is scheduled to launch aboard a Delta II rocket on Feb. 15 during a window extending from 6:08 to 6:27 p.m. Photo credit: NASA/Amanda Diller KSC-07pd0244

KENNEDY SPACE CENTER, FLA. -- On Launch Pad 17-B at Cape Canaveral Air Force Station, the THEMIS spacecraft is lifted up alongside the mobile service tower. Once inside, THEMIS will be encapsulated and mated More