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KENNEDY SPACE CENTER, Fla. - In the Payload Hazardous Servicing Facility, the Rover Equipment Deck (RED) on one of the Mars Exploration Rovers (MER) is integrated to the Warm Electronics Box (WEB) on the WEB cart. Processing of the rovers, plus cruise stage, lander and heat shield elements, is ongoing. Set to launch in 2003, the MER Mission will consist of two identical rovers designed to cover roughly 110 yards each Martian day. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. The rovers will be identical to each other, but will land at different regions of Mars. The first rover has a launch window opening May 30, and the second rover a window opening June 25, 2003. KSC-03pd0754

KENNEDY SPACE CENTER, Fla. - In the Payload Hazardous Servicing Facility, the Rover Equipment Deck (RED) on one of the Mars Exploration Rovers (MER) is integrated to the Warm Electronics Box (WEB) on the WEB c More

KENNEDY SPACE CENTER, FLA. - In the Payload Hazardous Servicing Facility, workers align the Rover Equipment Deck (RED) on one of the Mars Exploration Rovers (MER) with the Warm Electronics Box (WEB). Processing of the rovers, plus cruise stage, lander and heat shield elements, is ongoing. Set to launch in 2003, the MER Mission will consist of two identical rovers designed to cover roughly 110 yards each Martian day. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. The rovers will be identical to each other, but will land at different regions of Mars. The first rover has a launch window opening May 30, and the second rover a window opening June 25, 2003. KSC-03pd0752

KENNEDY SPACE CENTER, FLA. - In the Payload Hazardous Servicing Facility, workers align the Rover Equipment Deck (RED) on one of the Mars Exploration Rovers (MER) with the Warm Electronics Box (WEB). Processin More

KENNEDY SPACE CENTER, Fla. - In the Payload Hazardous Servicing Facility, workers position the lifting fixture over the Rover Equipment Deck (RED), a component of one of the Mars Exploration Rovers (MER), before moving it. Processing of the rovers, plus cruise stage, lander and heat shield elements, is ongoing. Set to launch in 2003, the MER Mission will consist of two identical rovers designed to cover roughly 110 yards each Martian day. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. The rovers will be identical to each other, but will land at different regions of Mars. The first rover has a launch window opening May 30, and the second rover a window opening June 25, 2003. KSC-03pd0755

KENNEDY SPACE CENTER, Fla. - In the Payload Hazardous Servicing Facility, workers position the lifting fixture over the Rover Equipment Deck (RED), a component of one of the Mars Exploration Rovers (MER), bef More

KENNEDY SPACE CENTER, Fla. - A worker in the Payload Hazardous Servicing Facility makes adjustments on one of the Mars Exploration Rovers (MER). Processing of the rovers, cruise stage, lander and heat shield elements is ongoing. Set to launch in 2003, the MER Mission will consist of two identical rovers designed to cover roughly 110 yards each Martian day. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. The rovers will be identical to each other, but will land at different regions of Mars. The first rover has a launch window opening May 30, and the second rover a window opening June 25, 2003. KSC-03pd0762

KENNEDY SPACE CENTER, Fla. - A worker in the Payload Hazardous Servicing Facility makes adjustments on one of the Mars Exploration Rovers (MER). Processing of the rovers, cruise stage, lander and heat shield e More

KENNEDY SPACE CENTER, FLA. - One of the Mars Exploration Rovers (MER) sits on a stand in the Payload Hazardous Servicing Facility. Processing of the rovers, cruise stage, lander and heat shield elements is ongoing. Set to launch in 2003, the MER Mission will consist of two identical rovers designed to cover roughly 110 yards each Martian day. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. The rovers will be identical to each other, but will land at different regions of Mars. The first rover has a launch window opening May 30, and the second rover a window opening June 25, 2003. KSC-03pd0758

KENNEDY SPACE CENTER, FLA. - One of the Mars Exploration Rovers (MER) sits on a stand in the Payload Hazardous Servicing Facility. Processing of the rovers, cruise stage, lander and heat shield elements is ong More

KENNEDY SPACE CENTER, Fla. - Moved to the floor of the Payload Hazardous Servicing Facility, this Mars Exploration Rover (MER) is ready for further processing. Set to launch in 2003, the MER Mission will consist of two identical rovers designed to cover roughly 110 yards each Martian day. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. The rovers will be identical to each other, but will land at different regions of Mars. The first rover has a launch window opening May 30, and the second rover a window opening June 25, 2003. KSC-03pd0766

KENNEDY SPACE CENTER, Fla. - Moved to the floor of the Payload Hazardous Servicing Facility, this Mars Exploration Rover (MER) is ready for further processing. Set to launch in 2003, the MER Mission will cons More

KENNEDY SPACE CENTER, Fla. - The solar arrays on the Mars Exploration Rover-2 (MER-2) are fully opened during a test in the Payload Hazardous Servicing Facility. Set to launch in Spring 2003, the MER Mission will consist of two identical rovers designed to cover roughly 110 yards each Martian day. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. The rovers will be identical to each other, but will land at different regions of Mars. The first rover has a launch window opening May 30, and the second rover a window opening June 25, 2003. KSC-03pd0771

KENNEDY SPACE CENTER, Fla. - The solar arrays on the Mars Exploration Rover-2 (MER-2) are fully opened during a test in the Payload Hazardous Servicing Facility. Set to launch in Spring 2003, the MER Mission More

KENNEDY SPACE CENTER, Fla. - Workers in the Payload Hazardous Servicing Facility test the opening of the solar arrays on the Mars Exploration Rover-2 (MER-2). Set to launch in Spring 2003, the MER Mission will consist of two identical rovers designed to cover roughly 110 yards each Martian day. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. The rovers will be identical to each other, but will land at different regions of Mars. The first rover has a launch window opening May 30, and the second rover a window opening June 25, 2003. KSC-03pd0770

KENNEDY SPACE CENTER, Fla. - Workers in the Payload Hazardous Servicing Facility test the opening of the solar arrays on the Mars Exploration Rover-2 (MER-2). Set to launch in Spring 2003, the MER Mission wil More

KENNEDY SPACE CENTER, Fla. - In the Payload Hazardous Servicing Facility, workers steady one of the Mars Exploration Rovers (MER) as it is moved from its stand onto the floor. Processing of the rovers, cruise stage, lander and heat shield elements is ongoing. Set to launch in 2003, the MER Mission will consist of two identical rovers designed to cover roughly 110 yards each Martian day. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. The rovers will be identical to each other, but will land at different regions of Mars. The first rover has a launch window opening May 30, and the second rover a window opening June 25, 2003. KSC-03pd0763

KENNEDY SPACE CENTER, Fla. - In the Payload Hazardous Servicing Facility, workers steady one of the Mars Exploration Rovers (MER) as it is moved from its stand onto the floor. Processing of the rovers, cruise More

KENNEDY SPACE CENTER, Fla. - With cables released, this Mars Exploration Rover sits on the floor of the Payload Hazardous Servicing Facility. Processing of the rovers, cruise stage, lander and heat shield elements is ongoing. Set to launch in 2003, the MER Mission will consist of two identical rovers designed to cover roughly 110 yards each Martian day. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. The rovers will be identical to each other, but will land at different regions of Mars. The first rover has a launch window opening May 30, and the second rover a window opening June 25, 2003. KSC-03pd0764

KENNEDY SPACE CENTER, Fla. - With cables released, this Mars Exploration Rover sits on the floor of the Payload Hazardous Servicing Facility. Processing of the rovers, cruise stage, lander and heat shield ele More

KENNEDY SPACE CENTER, Fla. - Workers in the Payload Hazardous Servicing Facility check out one of the landers for the Mars Exploration Rovers (MER). In the background is the Cruise Stage Assembly. Processing of the rovers, cruise stage, lander and heat shield elements is ongoing. Set to launch in 2003, the MER Mission will consist of two identical rovers designed to cover roughly 110 yards each Martian day. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. The rovers will be identical to each other, but will land at different regions of Mars. The first rover has a launch window opening May 30, and the second rover a window opening June 25, 2003. KSC-03pd0759

KENNEDY SPACE CENTER, Fla. - Workers in the Payload Hazardous Servicing Facility check out one of the landers for the Mars Exploration Rovers (MER). In the background is the Cruise Stage Assembly. Processing More

KENNEDY SPACE CENTER, Fla. - With cables released, this Mars Exploration Rover (MER) sits on the floor of the Payload Hazardous Servicing Facility. Processing of the rovers, cruise stage, lander and heat shield elements is ongoing. Set to launch in 2003, the MER Mission will consist of two identical rovers designed to cover roughly 110 yards each Martian day. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. The rovers will be identical to each other, but will land at different regions of Mars. The first rover has a launch window opening May 30, and the second rover a window opening June 25, 2003. KSC-03pd0765

KENNEDY SPACE CENTER, Fla. - With cables released, this Mars Exploration Rover (MER) sits on the floor of the Payload Hazardous Servicing Facility. Processing of the rovers, cruise stage, lander and heat shie More

KENNEDY SPACE CENTER, Fla. - The Mars Exploration Rover-2 (MER-2) is ready for solar array testing in the Payload Hazardous Servicing Facility. Set to launch in Spring 2003, the MER Mission will consist of two identical rovers designed to cover roughly 110 yards each Martian day. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. The rovers will be identical to each other, but will land at different regions of Mars. The first rover has a launch window opening May 30, and the second rover a window opening June 25, 2003. KSC-03pd0769

KENNEDY SPACE CENTER, Fla. - The Mars Exploration Rover-2 (MER-2) is ready for solar array testing in the Payload Hazardous Servicing Facility. Set to launch in Spring 2003, the MER Mission will consist of two More

KENNEDY SPACE CENTER, Fla. - Workers in the Payload Hazardous Servicing Facility look over one of the Mars Exploration Rovers (MER). Processing of the rovers, cruise stage, lander and heat shield elements is ongoing. Set to launch in 2003, the MER Mission will consist of two identical rovers designed to cover roughly 110 yards each Martian day. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. The rovers will be identical to each other, but will land at different regions of Mars. The first rover has a launch window opening May 30, and the second rover a window opening June 25, 2003. KSC-03pd0761

KENNEDY SPACE CENTER, Fla. - Workers in the Payload Hazardous Servicing Facility look over one of the Mars Exploration Rovers (MER). Processing of the rovers, cruise stage, lander and heat shield elements is More

KENNEDY SPACE CENTER, Fla. - With the solar arrays fully open on the Mars Exploration Rover-2 (MER-2), the low-gain and high-gain antennas can be seen. Set to launch in Spring 2003, the MER Mission will consist of two identical rovers designed to cover roughly 110 yards each Martian day. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. The rovers will be identical to each other, but will land at different regions of Mars. The first rover has a launch window opening May 30, and the second rover a window opening June 25, 2003. KSC-03pd0772

KENNEDY SPACE CENTER, Fla. - With the solar arrays fully open on the Mars Exploration Rover-2 (MER-2), the low-gain and high-gain antennas can be seen. Set to launch in Spring 2003, the MER Mission will consi More

KENNEDY SPACE CENTER, Fla. - Workers in the Payload Hazardous Servicing Facility examine one of the Mars Exploration Rovers (MER). Processing of the rovers, cruise stage, lander and heat shield elements is ongoing. Set to launch in 2003, the MER Mission will consist of two identical rovers designed to cover roughly 110 yards each Martian day. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. The rovers will be identical to each other, but will land at different regions of Mars. The first rover has a launch window opening May 30, and the second rover a window opening June 25, 2003. KSC-03pd0760

KENNEDY SPACE CENTER, Fla. - Workers in the Payload Hazardous Servicing Facility examine one of the Mars Exploration Rovers (MER). Processing of the rovers, cruise stage, lander and heat shield elements is ong More

KENNEDY SPACE CENTER, Fla. - Workers in the Payload Hazardous Servicing Facility look at the Mars Exploration Rover-2 (MER-2) with its solar arrays fully open. On top can be seen the low-gain and high-gain antennas. Set to launch in Spring 2003, the MER Mission will consist of two identical rovers designed to cover roughly 110 yards each Martian day. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. The rovers will be identical to each other, but will land at different regions of Mars. The first rover has a launch window opening May 30, and the second rover a window opening June 25, 2003. KSC-03pd0773

KENNEDY SPACE CENTER, Fla. - Workers in the Payload Hazardous Servicing Facility look at the Mars Exploration Rover-2 (MER-2) with its solar arrays fully open. On top can be seen the low-gain and high-gain ant More

KENNEDY SPACE CENTER, FLA. -- The Mars Exploration Rover-2 (MER-2) is ready for solar array testing in the Payload Hazardous Servicing Facility. Set to launch in Spring 2003, the MER Mission will consist of two identical rovers designed to cover roughly 110 yards each Martian day. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. The rovers will be identical to each other, but will land at different regions of Mars. The first rover has a launch window opening May 30, and the second rover a window opening June 25, 2003. KSC-03pd0768

KENNEDY SPACE CENTER, FLA. -- The Mars Exploration Rover-2 (MER-2) is ready for solar array testing in the Payload Hazardous Servicing Facility. Set to launch in Spring 2003, the MER Mission will consist of t More

KENNEDY SPACE CENTER, FLA. -- In the Payload Hazardous Servicing Facility, the Mars Exploration Rover-2 (MER-2) is being tested for mobility and maneuverability. Atop the rover can be seen the cameras, mounted on a Pancam Mast Assembly (PMA). Set to launch in Spring 2003, the MER Mission will consist of two identical rovers designed to cover roughly 110 yards each Martian day. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. The rovers will be identical to each other, but will land at different regions of Mars. The first rover has a launch window opening May 30, and the second rover a window opening June 25. KSC-03pd0780

KENNEDY SPACE CENTER, FLA. -- In the Payload Hazardous Servicing Facility, the Mars Exploration Rover-2 (MER-2) is being tested for mobility and maneuverability. Atop the rover can be seen the cameras, mounte More

KENNEDY SPACE CENTER, Fla. - In the Payload Hazardous Servicing Facility, workers watch as the Mars Exploration Rover-2 (MER-2) rolls over ramps to test its mobility and maneuverability. Set to launch in Spring 2003, the MER Mission will consist of two identical rovers designed to cover roughly 110 yards each Martian day over various terrain. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. The rovers will be identical to each other, but will land at different regions of Mars. The first rover has a launch window opening May 30, and the second rover a window opening June 25. KSC-03pd0790

KENNEDY SPACE CENTER, Fla. - In the Payload Hazardous Servicing Facility, workers watch as the Mars Exploration Rover-2 (MER-2) rolls over ramps to test its mobility and maneuverability. Set to launch in Sprin More

KENNEDY SPACE CENTER, Fla. - Workers in the Payload Hazardous Servicing Facility watch as the Mars Exploration Rover-2 (MER-2) turns. MER-2 is being tested for mobility and maneuverability. Atop the rover, on the left, can be seen the cameras, mounted on a Pancam Mast Assembly (PMA). On the right are the low-gain and high-gain antennas. Set to launch in Spring 2003, the MER Mission will consist of two identical rovers designed to cover roughly 110 yards each Martian day. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. The rovers will be identical to each other, but will land at different regions of Mars. The first rover has a launch window opening May 30, and the second rover a window opening June 25. KSC-03pd0783

KENNEDY SPACE CENTER, Fla. - Workers in the Payload Hazardous Servicing Facility watch as the Mars Exploration Rover-2 (MER-2) turns. MER-2 is being tested for mobility and maneuverability. Atop the rover, on More

KENNEDY SPACE CENTER, Fla. - In the Payload Hazardous Servicing Facility, the Mars Exploration Rover-2 (MER-2) is tested for mobility and maneuverability. Set to launch in Spring 2003, the MER Mission will consist of two identical rovers designed to cover roughly 110 yards each Martian day. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. The rovers will be identical to each other, but will land at different regions of Mars. The first rover has a launch window opening May 30, and the second rover a window opening June 25. KSC-03pd0787

KENNEDY SPACE CENTER, Fla. - In the Payload Hazardous Servicing Facility, the Mars Exploration Rover-2 (MER-2) is tested for mobility and maneuverability. Set to launch in Spring 2003, the MER Mission will co More

KENNEDY SPACE CENTER, Fla. - In the Payload Hazardous Servicing Facility, workers check the progress of the Mars Exploration Rover-2 (MER-2) as it rolls over ramps to test its mobility and maneuverability. Set to launch in Spring 2003, the MER Mission will consist of two identical rovers designed to cover roughly 110 yards each Martian day over various terrain. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. The rovers will be identical to each other, but will land at different regions of Mars. The first rover has a launch window opening May 30, and the second rover a window opening June 25. KSC-03pd0792

KENNEDY SPACE CENTER, Fla. - In the Payload Hazardous Servicing Facility, workers check the progress of the Mars Exploration Rover-2 (MER-2) as it rolls over ramps to test its mobility and maneuverability. Set More

KENNEDY SPACE CENTER, Fla. - In the Payload Hazardous Servicing Facility, the Mars Exploration Rover-2 (MER-2) has rotated. Atop the rover can be seen the cameras, mounted on a Pancam Mast Assembly (PMA). Set to launch in Spring 2003, the MER Mission will consist of two identical rovers designed to cover roughly 110 yards each Martian day. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. The rovers will be identical to each other, but will land at different regions of Mars. The first rover has a launch window opening May 30, and the second rover a window opening June 25. KSC-03pd0784

KENNEDY SPACE CENTER, Fla. - In the Payload Hazardous Servicing Facility, the Mars Exploration Rover-2 (MER-2) has rotated. Atop the rover can be seen the cameras, mounted on a Pancam Mast Assembly (PMA). Se More

KENNEDY SPACE CENTER, FLA. -- In the Payload Hazardous Servicing Facility, the Mars Exploration Rover-2 (MER-2) is tested for mobility and maneuverability over a setup of ramps. Set to launch in Spring 2003, the MER Mission will consist of two identical rovers designed to cover roughly 110 yards each Martian day over various terrain. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. The rovers will be identical to each other, but will land at different regions of Mars. The first rover has a launch window opening May 30, and the second rover a window opening June 25. KSC-03pd0789

KENNEDY SPACE CENTER, FLA. -- In the Payload Hazardous Servicing Facility, the Mars Exploration Rover-2 (MER-2) is tested for mobility and maneuverability over a setup of ramps. Set to launch in Spring 2003, t More

KENNEDY SPACE CENTER, Fla. - Workers in the Payload Hazardous Servicing Facility check different parts of the Mars Exploration Rover-2 (MER-2) after testing the rover's mobility and maneuverability. Set to launch in Spring 2003, the MER Mission will consist of two identical rovers designed to cover roughly 110 yards each Martian day. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. The rovers will be identical to each other, but will land at different regions of Mars. The first rover has a launch window opening May 30, and the second rover a window opening June 25. KSC-03pd0785

KENNEDY SPACE CENTER, Fla. - Workers in the Payload Hazardous Servicing Facility check different parts of the Mars Exploration Rover-2 (MER-2) after testing the rover's mobility and maneuverability. Set to la More

KENNEDY SPACE CENTER, Fla. - In the Payload Hazardous Servicing Facility, workers watch as the Mars Exploration Rover-2 (MER-2) rolls over ramps to test its mobility and maneuverability. Set to launch in Spring 2003, the MER Mission will consist of two identical rovers designed to cover roughly 110 yards each Martian day over various terrain. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. The rovers will be identical to each other, but will land at different regions of Mars. The first rover has a launch window opening May 30, and the second rover a window opening June 25. KSC-03pd0795

KENNEDY SPACE CENTER, Fla. - In the Payload Hazardous Servicing Facility, workers watch as the Mars Exploration Rover-2 (MER-2) rolls over ramps to test its mobility and maneuverability. Set to launch in Spri More

KENNEDY SPACE CENTER, Fla. - Workers in the Payload Hazardous Servicing Facility watch as the Mars Exploration Rover-2 (MER-2) is tested for mobility and maneuverability. Atop the rover, on the left, can be seen the cameras, mounted on a Pancam Mast Assembly (PMA). On the right are the low-gain and high-gain antennas. Set to launch in Spring 2003, the MER Mission will consist of two identical rovers designed to cover roughly 110 yards each Martian day. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. The rovers will be identical to each other, but will land at different regions of Mars. The first rover has a launch window opening May 30, and the second rover a window opening June 25. KSC-03pd0782

KENNEDY SPACE CENTER, Fla. - Workers in the Payload Hazardous Servicing Facility watch as the Mars Exploration Rover-2 (MER-2) is tested for mobility and maneuverability. Atop the rover, on the left, can be s More

KENNEDY SPACE CENTER, Fla. - In the Payload Hazardous Servicing Facility, workers watch as the Mars Exploration Rover-2 (MER-2) rolls over ramps to test its mobility and maneuverability. Set to launch in Spring 2003, the MER Mission will consist of two identical rovers designed to cover roughly 110 yards each Martian day over various terrain. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. The rovers will be identical to each other, but will land at different regions of Mars. The first rover has a launch window opening May 30, and the second rover a window opening June 25. KSC-03pd0791

KENNEDY SPACE CENTER, Fla. - In the Payload Hazardous Servicing Facility, workers watch as the Mars Exploration Rover-2 (MER-2) rolls over ramps to test its mobility and maneuverability. Set to launch in Sprin More

KENNEDY SPACE CENTER, Fla. - In the Payload Hazardous Servicing Facility, the Mars Exploration Rover-2 (MER-2) rolls over ramps to test its mobility and maneuverability. Set to launch in Spring 2003, the MER Mission will consist of two identical rovers designed to cover roughly 110 yards each Martian day over various terrain. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. The rovers will be identical to each other, but will land at different regions of Mars. The first rover has a launch window opening May 30, and the second rover a window opening June 25. KSC-03pd0793

KENNEDY SPACE CENTER, Fla. - In the Payload Hazardous Servicing Facility, the Mars Exploration Rover-2 (MER-2) rolls over ramps to test its mobility and maneuverability. Set to launch in Spring 2003, the MER More

KENNEDY SPACE CENTER, Fla. - In the Payload Hazardous Servicing Facility, the Mars Exploration Rover-2 (MER-2) is tested for mobility and maneuverability. Set to launch in Spring 2003, the MER Mission will consist of two identical rovers designed to cover roughly 110 yards each Martian day. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. The rovers will be identical to each other, but will land at different regions of Mars. The first rover has a launch window opening May 30, and the second rover a window opening June 25. KSC-03pd0786

KENNEDY SPACE CENTER, Fla. - In the Payload Hazardous Servicing Facility, the Mars Exploration Rover-2 (MER-2) is tested for mobility and maneuverability. Set to launch in Spring 2003, the MER Mission will co More

KENNEDY SPACE CENTER, Fla. - After another test on the Mars Exploration Rover-2 (MER-2) for mobility and maneuverability, workers check the rover. Atop the rover can be seen the cameras, mounted on a Pancam Mast Assembly (PMA). Set to launch in Spring 2003, the MER Mission will consist of two identical rovers designed to cover roughly 110 yards each Martian day. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. The rovers will be identical to each other, but will land at different regions of Mars. The first rover has a launch window opening May 30, and the second rover a window opening June 25. KSC-03pd0788

KENNEDY SPACE CENTER, Fla. - After another test on the Mars Exploration Rover-2 (MER-2) for mobility and maneuverability, workers check the rover. Atop the rover can be seen the cameras, mounted on a Pancam M More

KENNEDY SPACE CENTER, Fla. - In the Payload Hazardous Servicing Facility, workers watch as the Mars Exploration Rover-2 (MER-2) rolls over ramps to test its mobility and maneuverability. Set to launch in Spring 2003, the MER Mission will consist of two identical rovers designed to cover roughly 110 yards each Martian day over various terrain. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. The rovers will be identical to each other, but will land at different regions of Mars. The first rover has a launch window opening May 30, and the second rover a window opening June 25. KSC-03pd0794

KENNEDY SPACE CENTER, Fla. - In the Payload Hazardous Servicing Facility, workers watch as the Mars Exploration Rover-2 (MER-2) rolls over ramps to test its mobility and maneuverability. Set to launch in Spri More

KENNEDY SPACE CENTER, Fla. - In the Payload Hazardous Servicing Facility, the Mars Exploration Rover-2 (MER-2) is being tested for mobility and maneuverability. Atop the rover can be seen the cameras, mounted on a Pancam Mast Assembly (PMA). Set to launch in Spring 2003, the MER Mission will consist of two identical rovers designed to cover roughly 110 yards each Martian day. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. The rovers will be identical to each other, but will land at different regions of Mars. The first rover has a launch window opening May 30, and the second rover a window opening June 25. KSC-03pd0781

KENNEDY SPACE CENTER, Fla. - In the Payload Hazardous Servicing Facility, the Mars Exploration Rover-2 (MER-2) is being tested for mobility and maneuverability. Atop the rover can be seen the cameras, mounted More

KENNEDY SPACE CENTER, FLA. - In the Payload Hazardous Servicing Facility, workers adjust the position of the Mars Exploration Rover-2 (MER-2) on the base petal of its lander assembly. Set to launch in Spring 2003, the MER Mission will consist of two identical rovers designed to cover roughly 110 yards each Martian day over various terrain. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. The rovers will be identical to each other, but will land at different regions of Mars. The first rover has a launch window opening May 30, and the second rover, a window opening June 25. KSC-03pd0883

KENNEDY SPACE CENTER, FLA. - In the Payload Hazardous Servicing Facility, workers adjust the position of the Mars Exploration Rover-2 (MER-2) on the base petal of its lander assembly. Set to launch in Spring 2 More

KENNEDY SPACE CENTER, FLA. - In the Payload Hazardous Servicing Facility, workers lower the Mars Exploration Rover-2 (MER-2) onto the base petal of its lander assembly. Set to launch in Spring 2003, the MER Mission will consist of two identical rovers designed to cover roughly 110 yards each Martian day over various terrain. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. The rovers will be identical to each other, but will land at different regions of Mars. The first rover has a launch window opening May 30, and the second rover, a window opening June 25. KSC-03pd0880

KENNEDY SPACE CENTER, FLA. - In the Payload Hazardous Servicing Facility, workers lower the Mars Exploration Rover-2 (MER-2) onto the base petal of its lander assembly. Set to launch in Spring 2003, the MER Mi More

KENNEDY SPACE CENTER, FLA. - In the Payload Hazardous Servicing Facility, the Mars Exploration Rover-2 (MER-2) rests on the base petal of its lander assembly. Set to launch in Spring 2003, the MER Mission will consist of two identical rovers designed to cover roughly 110 yards each Martian day over various terrain. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. The rovers will be identical to each other, but will land at different regions of Mars. The first rover has a launch window opening May 30, and the second rover, a window opening June 25. KSC-03pd0886

KENNEDY SPACE CENTER, FLA. - In the Payload Hazardous Servicing Facility, the Mars Exploration Rover-2 (MER-2) rests on the base petal of its lander assembly. Set to launch in Spring 2003, the MER Mission will More

KENNEDY SPACE CENTER, FLA. - In the Payload Hazardous Servicing Facility, workers check the alignment of the Mars Exploration Rover-2 (MER-2) as it sits on the base petal of its lander assembly. Set to launch in Spring 2003, the MER Mission will consist of two identical rovers designed to cover roughly 110 yards each Martian day over various terrain. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. The rovers will be identical to each other, but will land at different regions of Mars. The first rover has a launch window opening May 30, and the second rover, a window opening June 25. KSC-03pd0885

KENNEDY SPACE CENTER, FLA. - In the Payload Hazardous Servicing Facility, workers check the alignment of the Mars Exploration Rover-2 (MER-2) as it sits on the base petal of its lander assembly. Set to launch More

KENNEDY SPACE CENTER, FLA. - In the Payload Hazardous Servicing Facility, workers move the Mars Exploration Rover-2 (MER-2) into position over the base petal of its lander assembly. Set to launch in Spring 2003, the MER Mission will consist of two identical rovers designed to cover roughly 110 yards each Martian day over various terrain. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. The rovers will be identical to each other, but will land at different regions of Mars. The first rover has a launch window opening May 30, and the second rover, a window opening June 25. KSC-03pd0879

KENNEDY SPACE CENTER, FLA. - In the Payload Hazardous Servicing Facility, workers move the Mars Exploration Rover-2 (MER-2) into position over the base petal of its lander assembly. Set to launch in Spring 200 More

KENNEDY SPACE CENTER, FLA. - In the Payload Hazardous Servicing Facility, workers move the Mars Exploration Rover-2 (MER-2) towards the base petal of its lander assembly. Set to launch in Spring 2003, the MER Mission will consist of two identical rovers designed to cover roughly 110 yards each Martian day over various terrain. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. The rovers will be identical to each other, but will land at different regions of Mars. The first rover has a launch window opening May 30, and the second rover, a window opening June 25. KSC-03pd0878

KENNEDY SPACE CENTER, FLA. - In the Payload Hazardous Servicing Facility, workers move the Mars Exploration Rover-2 (MER-2) towards the base petal of its lander assembly. Set to launch in Spring 2003, the MER More

KENNEDY SPACE CENTER, FLA. - In the Payload Hazardous Servicing Facility, workers adjust the position of the Mars Exploration Rover-2 (MER-2) as it is lowered onto the base petal of its lander assembly. Set to launch in Spring 2003, the MER Mission will consist of two identical rovers designed to cover roughly 110 yards each Martian day over various terrain. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. The rovers will be identical to each other, but will land at different regions of Mars. The first rover has a launch window opening May 30, and the second rover, a window opening June 25. KSC-03pd0884

KENNEDY SPACE CENTER, FLA. - In the Payload Hazardous Servicing Facility, workers adjust the position of the Mars Exploration Rover-2 (MER-2) as it is lowered onto the base petal of its lander assembly. Set to More

KENNEDY SPACE CENTER, FLA. - In the Payload Hazardous Servicing Facility, workers prepare to move the Mars Exploration Rover-2 (MER-2) onto the base petal of its lander assembly. Set to launch in Spring 2003, the MER Mission will consist of two identical rovers designed to cover roughly 110 yards each Martian day over various terrain. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. The rovers will be identical to each other, but will land at different regions of Mars. The first rover has a launch window opening May 30, and the second rover, a window opening June 25. KSC-03pd0876

KENNEDY SPACE CENTER, FLA. - In the Payload Hazardous Servicing Facility, workers prepare to move the Mars Exploration Rover-2 (MER-2) onto the base petal of its lander assembly. Set to launch in Spring 2003, More

KENNEDY SPACE CENTER, FLA. - In the Payload Hazardous Servicing Facility, the Mars Exploration Rover-2 (MER-2) rests in the proper position on the base petal of its lander assembly. Set to launch in Spring 2003, the MER Mission will consist of two identical rovers designed to cover roughly 110 yards each Martian day over various terrain. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. The rovers will be identical to each other, but will land at different regions of Mars. The first rover has a launch window opening May 30, and the second rover, a window opening June 25. KSC-03pd0887

KENNEDY SPACE CENTER, FLA. - In the Payload Hazardous Servicing Facility, the Mars Exploration Rover-2 (MER-2) rests in the proper position on the base petal of its lander assembly. Set to launch in Spring 200 More

KENNEDY SPACE CENTER, FLA. - In the Payload Hazardous Servicing Facility, workers lower the Mars Exploration Rover-2 (MER-2) onto the base petal of its lander assembly. Set to launch in Spring 2003, the MER Mission will consist of two identical rovers designed to cover roughly 110 yards each Martian day over various terrain. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. The rovers will be identical to each other, but will land at different regions of Mars. The first rover has a launch window opening May 30, and the second rover, a window opening June 25. KSC-03pd0881

KENNEDY SPACE CENTER, FLA. - In the Payload Hazardous Servicing Facility, workers lower the Mars Exploration Rover-2 (MER-2) onto the base petal of its lander assembly. Set to launch in Spring 2003, the MER Mi More

KENNEDY SPACE CENTER, FLA. - In the Payload Hazardous Servicing Facility, workers prepare the base petal of a lander assembly to receive the Mars Exploration Rover-2 (MER-2). Set to launch in Spring 2003, the MER Mission will consist of two identical rovers designed to cover roughly 110 yards each Martian day over various terrain. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. The rovers will be identical to each other, but will land at different regions of Mars. The first rover has a launch window opening May 30, and the second rover, a window opening June 25. KSC-03pd0877

KENNEDY SPACE CENTER, FLA. - In the Payload Hazardous Servicing Facility, workers prepare the base petal of a lander assembly to receive the Mars Exploration Rover-2 (MER-2). Set to launch in Spring 2003, the More

KENNEDY SPACE CENTER, FLA. - In the Payload Hazardous Servicing Facility, workers monitor the alignment of the Mars Exploration Rover-2 (MER-2) as it is lowered onto the base petal of its lander assembly. Set to launch in Spring 2003, the MER Mission will consist of two identical rovers designed to cover roughly 110 yards each Martian day over various terrain. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. The rovers will be identical to each other, but will land at different regions of Mars. The first rover has a launch window opening May 30, and the second rover, a window opening June 25. KSC-03pd0882

KENNEDY SPACE CENTER, FLA. - In the Payload Hazardous Servicing Facility, workers monitor the alignment of the Mars Exploration Rover-2 (MER-2) as it is lowered onto the base petal of its lander assembly. Set More

KENNEDY SPACE CENTER, FLA. - After closing the solar panels for flight stow, workers examine the Mars Exploration Rover 2 (MER-2). Set to launch in Spring 2003, the MER Mission will consist of two identical rovers designed to cover roughly 110 yards each Martian day over various terrain. The rovers will be identical to each other, but will land at different regions of Mars. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. The first rover has a launch window opening May 30, and the second rover a window opening June 25. KSC-03pd0914

KENNEDY SPACE CENTER, FLA. - After closing the solar panels for flight stow, workers examine the Mars Exploration Rover 2 (MER-2). Set to launch in Spring 2003, the MER Mission will consist of two identical More

KENNEDY SPACE CENTER, FLA. - Workers begin closing the solar panels on the Mars Exploration Rover 2 (MER-2) for flight stow. Set to launch in Spring 2003, the MER Mission will consist of two identical rovers designed to cover roughly 110 yards each Martian day over various terrain. The rovers will be identical to each other, but will land at different regions of Mars. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. The first rover has a launch window opening May 30, and the second rover a window opening June 25. KSC-03pd0913

KENNEDY SPACE CENTER, FLA. - Workers begin closing the solar panels on the Mars Exploration Rover 2 (MER-2) for flight stow. Set to launch in Spring 2003, the MER Mission will consist of two identical rovers More

KENNEDY SPACE CENTER, FLA. - After closing the solar panels for flight stow, workers examine the Mars Exploration Rover 2 (MER-2). Set to launch in Spring 2003, the MER Mission will consist of two identical rovers designed to cover roughly 110 yards each Martian day over various terrain. The rovers will be identical to each other, but will land at different regions of Mars. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. The first rover has a launch window opening May 30, and the second rover a window opening June 25. KSC-03pd0915

KENNEDY SPACE CENTER, FLA. - After closing the solar panels for flight stow, workers examine the Mars Exploration Rover 2 (MER-2). Set to launch in Spring 2003, the MER Mission will consist of two identical More

KENNEDY SPACE CENTER, FLA. - A worker checks a component of the Mars Exploration Rover 2 (MER-2) before flight stow of the solar panels, still extended. Set to launch in Spring 2003, the MER Mission will consist of two identical rovers designed to cover roughly 110 yards each Martian day over various terrain. The rovers will be identical to each other, but will land at different regions of Mars. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. The first rover has a launch window opening May 30, and the second rover a window opening June 25. KSC-03pd0911

KENNEDY SPACE CENTER, FLA. - A worker checks a component of the Mars Exploration Rover 2 (MER-2) before flight stow of the solar panels, still extended. Set to launch in Spring 2003, the MER Mission will cons More

KENNEDY SPACE CENTER, FLA. - A worker makes the final launch preparations on the rover equipment deck (RED) for the Mars Exploration Rover 2 (MER-2). Set to launch in Spring 2003, the MER Mission will consist of two identical rovers designed to cover roughly 110 yards each Martian day over various terrain. The rovers will be identical to each other, but will land at different regions of Mars. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. The first rover has a launch window opening May 30, and the second rover a window opening June 25. KSC-03pd0916

KENNEDY SPACE CENTER, FLA. - A worker makes the final launch preparations on the rover equipment deck (RED) for the Mars Exploration Rover 2 (MER-2). Set to launch in Spring 2003, the MER Mission will consist More

KENNEDY SPACE CENTER, FLA. - Workers discuss a point of interest on one solar panel of the Mars Exploration Rover 2 (MER-2) before flight stow. Set to launch in Spring 2003, the MER Mission will consist of two identical rovers designed to cover roughly 110 yards each Martian day over various terrain. The rovers will be identical to each other, but will land at different regions of Mars. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. The first rover has a launch window opening May 30, and the second rover a window opening June 25. KSC-03pd0912

KENNEDY SPACE CENTER, FLA. - Workers discuss a point of interest on one solar panel of the Mars Exploration Rover 2 (MER-2) before flight stow. Set to launch in Spring 2003, the MER Mission will consist of tw More

KENNEDY SPACE CENTER, FLA. - Workers make additional checks of the Mars Exploration Rover 2 (MER-2) before flight stow of the solar panels, still extended. Set to launch in Spring 2003, the MER Mission will consist of two identical rovers designed to cover roughly 110 yards each Martian day over various terrain. The rovers will be identical to each other, but will land at different regions of Mars. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. The first rover has a launch window opening May 30, and the second rover a window opening June 25. KSC-03pd0910

KENNEDY SPACE CENTER, FLA. - Workers make additional checks of the Mars Exploration Rover 2 (MER-2) before flight stow of the solar panels, still extended. Set to launch in Spring 2003, the MER Mission will c More

KENNEDY SPACE CENTER, FLA. - Workers gather around the Mars Exploration Rover 2 (MER-2) before flight stow of the solar panels, still extended. Set to launch in Spring 2003, the MER Mission will consist of two identical rovers designed to cover roughly 110 yards each Martian day over various terrain. The rovers will be identical to each other, but will land at different regions of Mars. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. The first rover has a launch window opening May 30, and the second rover a window opening June 25. KSC-03pd0909

KENNEDY SPACE CENTER, FLA. - Workers gather around the Mars Exploration Rover 2 (MER-2) before flight stow of the solar panels, still extended. Set to launch in Spring 2003, the MER Mission will consist of tw More

KENNEDY SPACE CENTER, FLA. -- Workers in the Payload Hazardous Servicing Facility secure the Mars Exploration Rover 2 (MER-2) to the base petal of the lander before the flight stow of the solar panels. Set to launch in Spring 2003, the MER Mission will consist of two identical rovers designed to cover roughly 110 yards each Martian day over various terrain. The rovers will be identical to each other, but will land at different regions of Mars. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. The first rover has a launch window opening May 30, and the second rover a window opening June 25. KSC-03pd0905

KENNEDY SPACE CENTER, FLA. -- Workers in the Payload Hazardous Servicing Facility secure the Mars Exploration Rover 2 (MER-2) to the base petal of the lander before the flight stow of the solar panels. Set to More

KENNEDY SPACE CENTER, FLA. - In the Payload Hazardous Servicing Facility, a worker examines one of the solar panels on the Mars Exploration Rover 2 (MER-2) before flight stow. Set to launch in Spring 2003, the MER Mission will consist of two identical rovers designed to cover roughly 110 yards each Martian day over various terrain. The rovers will be identical to each other, but will land at different regions of Mars. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. The first rover has a launch window opening May 30, and the second rover a window opening June 25. KSC-03pd0907

KENNEDY SPACE CENTER, FLA. - In the Payload Hazardous Servicing Facility, a worker examines one of the solar panels on the Mars Exploration Rover 2 (MER-2) before flight stow. Set to launch in Spring 2003, the More

KENNEDY SPACE CENTER, FLA. - In the Payload Hazardous Servicing Facility, workers check the solar panels on the Mars Exploration Rover 2 (MER-2) before flight stow. Set to launch in Spring 2003, the MER Mission will consist of two identical rovers designed to cover roughly 110 yards each Martian day over various terrain. The rovers will be identical to each other, but will land at different regions of Mars. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. The first rover has a launch window opening May 30, and the second rover a window opening June 25. KSC-03pd0908

KENNEDY SPACE CENTER, FLA. - In the Payload Hazardous Servicing Facility, workers check the solar panels on the Mars Exploration Rover 2 (MER-2) before flight stow. Set to launch in Spring 2003, the MER Missio More

KENNEDY SPACE CENTER, FLA. -- The cruise stage for one of the Mars Exploration Rovers is rotated for processing. Once functional testing and mission simulation of the flight elements is complete, the elements will be integrated for flight. There are two rovers, identical to each other, and each will land at different regions of Mars. They are designed to cover roughly 110 yards each Martian day over various terrain. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. The first rover has a launch window opening May 30, and the second rover a window opening June 25. KSC-03pd0942

KENNEDY SPACE CENTER, FLA. -- The cruise stage for one of the Mars Exploration Rovers is rotated for processing. Once functional testing and mission simulation of the flight elements is complete, the elements More

KENNEDY SPACE CENTER, FLA. - In the Payload Hazardous Servicing Facility, the Mars Exploration Rover 2 (MER-2) has been installed on the base petal of the lander and the solar arrays have been stowed for flight. The cruise stage is in the background. There are two rovers, identical to each other, and each will land at different regions of Mars. They are designed to cover roughly 110 yards each Martian day over various terrain. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. The first rover has a launch window opening May 30, and the second rover a window opening June 25. KSC-03pd0938

KENNEDY SPACE CENTER, FLA. - In the Payload Hazardous Servicing Facility, the Mars Exploration Rover 2 (MER-2) has been installed on the base petal of the lander and the solar arrays have been stowed for fligh More

KENNEDY SPACE CENTER, FLA. -- Insignia for the Mars Exploration Rovers mission has been placed in the center of the cruise stage. There are two rovers, identical to each other, and each will land at different regions of Mars. They are designed to cover roughly 110 yards each Martian day over various terrain. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. The first rover has a launch window opening May 30, and the second rover a window opening June 25. KSC-03pd0939

KENNEDY SPACE CENTER, FLA. -- Insignia for the Mars Exploration Rovers mission has been placed in the center of the cruise stage. There are two rovers, identical to each other, and each will land at different More

KENNEDY SPACE CENTER, FLA. - A worker examines the Mars Exploration Rover 1 (MER-1) after the science boom was deployed. Set to launch in Spring 2003, the MER Mission will consist of two identical rovers designed to cover roughly 110 yards each Martian day over various terrain. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. The rovers will be identical to each other, but will land at different regions of Mars. The first rover has a launch window opening May 30, and the second rover a window opening June 25. KSC-03pd0955

KENNEDY SPACE CENTER, FLA. - A worker examines the Mars Exploration Rover 1 (MER-1) after the science boom was deployed. Set to launch in Spring 2003, the MER Mission will consist of two identical rovers desi More

KENNEDY SPACE CENTER, FLA. -- Solar panels on the cruise stage of a Mars Exploration Rover are seen as the element is rotated for processing. Once functional testing and mission simulation of the flight elements is complete, the elements will be integrated for flight. There are two rovers, identical to each other, and each will land at different regions of Mars. They are designed to cover roughly 110 yards each Martian day over various terrain. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. The first rover has a launch window opening May 30, and the second rover a window opening June 25. KSC-03pd0945

KENNEDY SPACE CENTER, FLA. -- Solar panels on the cruise stage of a Mars Exploration Rover are seen as the element is rotated for processing. Once functional testing and mission simulation of the flight elem More

KENNEDY SPACE CENTER, FLA. - The Mars Exploration Rover 1 (MER-1) is seen in the foreground after the science boom was deployed. Set to launch in Spring 2003, the MER Mission will consist of two identical rovers designed to cover roughly 110 yards each Martian day over various terrain. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. The rovers will be identical to each other, but will land at different regions of Mars. The first rover has a launch window opening May 30, and the second rover a window opening June 25. KSC-03pd0957

KENNEDY SPACE CENTER, FLA. - The Mars Exploration Rover 1 (MER-1) is seen in the foreground after the science boom was deployed. Set to launch in Spring 2003, the MER Mission will consist of two identical rove More

KENNEDY SPACE CENTER, FLA. - On the Mars Exploration Rover 1 (MER-1), the science boom, below the front petal, is deployed. Set to launch in Spring 2003, the MER Mission will consist of two identical rovers designed to cover roughly 110 yards each Martian day over various terrain. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. The rovers will be identical to each other, but will land at different regions of Mars. The first rover has a launch window opening May 30, and the second rover a window opening June 25. KSC-03pd0958

KENNEDY SPACE CENTER, FLA. - On the Mars Exploration Rover 1 (MER-1), the science boom, below the front petal, is deployed. Set to launch in Spring 2003, the MER Mission will consist of two identical rovers More

KENNEDY SPACE CENTER, FLA. -- Solar panels on the cruise stage of a Mars Exploration Rover are seen as the element is rotated for processing. Once functional testing and mission simulation of the flight elements is complete, the elements will be integrated for flight. There are two rovers, identical to each other, and each will land at different regions of Mars. They are designed to cover roughly 110 yards each Martian day over various terrain. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. The first rover has a launch window opening May 30, and the second rover a window opening June 25. KSC-03pd0944

KENNEDY SPACE CENTER, FLA. -- Solar panels on the cruise stage of a Mars Exploration Rover are seen as the element is rotated for processing. Once functional testing and mission simulation of the flight eleme More

KENNEDY SPACE CENTER, FLA. - On the Mars Exploration Rover 1 (MER-1), the science boom, below the front petal, is deployed. Set to launch in Spring 2003, the MER Mission will consist of two identical rovers designed to cover roughly 110 yards each Martian day over various terrain. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. The rovers will be identical to each other, but will land at different regions of Mars. The first rover has a launch window opening May 30, and the second rover a window opening June 25. KSC-03pd0956

KENNEDY SPACE CENTER, FLA. - On the Mars Exploration Rover 1 (MER-1), the science boom, below the front petal, is deployed. Set to launch in Spring 2003, the MER Mission will consist of two identical rovers d More

KENNEDY SPACE CENTER, FLA. -- The cruise stage for one of the Mars Exploration Rovers is rotated for processing. Once functional testing and mission simulation of the flight elements is complete, the elements will be integrated for flight. There are two rovers, identical to each other, and each will land at different regions of Mars. They are designed to cover roughly 110 yards each Martian day over various terrain. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. The first rover has a launch window opening May 30, and the second rover a window opening June 25. KSC-03pd0940

KENNEDY SPACE CENTER, FLA. -- The cruise stage for one of the Mars Exploration Rovers is rotated for processing. Once functional testing and mission simulation of the flight elements is complete, the elements More

KENNEDY SPACE CENTER, FLA. -- In the Payload Hazardous Servicing Facility, the Mars Exploration Rover 2 (MER-2) has been installed on the base petal of the lander and the solar arrays have been stowed for flight. The cruise stage is in the background. There are two rovers, identical to each other, and each will land at different regions of Mars. They are designed to cover roughly 110 yards each Martian day over various terrain. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. The first rover has a launch window opening May 30, and the second rover a window opening June 25. KSC-03pd0946

KENNEDY SPACE CENTER, FLA. -- In the Payload Hazardous Servicing Facility, the Mars Exploration Rover 2 (MER-2) has been installed on the base petal of the lander and the solar arrays have been stowed for fligh More

KENNEDY SPACE CENTER, FLA. -- The cruise stage for one of the Mars Exploration Rovers is rotated for processing. Once functional testing and mission simulation of the flight elements is complete, the elements will be integrated for flight. There are two rovers, identical to each other, and each will land at different regions of Mars. They are designed to cover roughly 110 yards each Martian day over various terrain. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. The first rover has a launch window opening May 30, and the second rover a window opening June 25. KSC-03pd0941

KENNEDY SPACE CENTER, FLA. -- The cruise stage for one of the Mars Exploration Rovers is rotated for processing. Once functional testing and mission simulation of the flight elements is complete, the elements More

KENNEDY SPACE CENTER, FLA. -- The cruise stage for one of the Mars Exploration Rovers is rotated for processing. Once functional testing and mission simulation of the flight elements is complete, the elements will be integrated for flight. There are two rovers, identical to each other, and each will land at different regions of Mars. They are designed to cover roughly 110 yards each Martian day over various terrain. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. The first rover has a launch window opening May 30, and the second rover a window opening June 25. KSC-03pd0943

KENNEDY SPACE CENTER, FLA. -- The cruise stage for one of the Mars Exploration Rovers is rotated for processing. Once functional testing and mission simulation of the flight elements is complete, the elements More

KENNEDY SPACE CENTER, FLA. - Workers in the Payload Hazardous Servicing Facility release the overhead crane used to lower the Mars Exploration Rover 2 (MER-2) onto the base petal of the lander. Set to launch in Spring 2003, the MER Mission consists of two identical rovers. Landing at different regions of Mars, they are designed to cover roughly 110 yards each Martian day over various terrain. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. The first rover has a launch window opening May 30, and the second rover a window opening June 25. KSC-03pd0988

KENNEDY SPACE CENTER, FLA. - Workers in the Payload Hazardous Servicing Facility release the overhead crane used to lower the Mars Exploration Rover 2 (MER-2) onto the base petal of the lander. Set to launch More

KENNEDY SPACE CENTER, FLA. - Workers in the Payload Hazardous Servicing Facility examine the Mars Exploration Rover 2 (MER-2) as it is lowered onto the base petal of the lander. Set to launch in Spring 2003, the MER Mission consists of two identical rovers. Landing at different regions of Mars, they are designed to cover roughly 110 yards each Martian day over various terrain. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. The first rover has a launch window opening May 30, and the second rover a window opening June 25. KSC-03pd0987

KENNEDY SPACE CENTER, FLA. - Workers in the Payload Hazardous Servicing Facility examine the Mars Exploration Rover 2 (MER-2) as it is lowered onto the base petal of the lander. Set to launch in Spring 2003, More

KENNEDY SPACE CENTER, FLA. - The two elements, rover and lander, of Mars Exploration Rover 2 (MER-2) are assembled. Set to launch in Spring 2003, the MER Mission consists of two identical rovers. Landing at different regions of Mars, they are designed to cover roughly 110 yards each Martian day over various terrain. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. The first rover has a launch window opening May 30, and the second rover a window opening June 25. KSC-03pd0990

KENNEDY SPACE CENTER, FLA. - The two elements, rover and lander, of Mars Exploration Rover 2 (MER-2) are assembled. Set to launch in Spring 2003, the MER Mission consists of two identical rovers. Landing at More

KENNEDY SPACE CENTER, FLA. - In the Payload Hazardous Servicing Facility, an overhead crane is moved toward Mars Exploration Rover 2 (MER-2). The rover will be lifted and moved to the lander where it will be mated to the base petal. Set to launch in Spring 2003, the MER Mission consists of two identical rovers, landing at different regions of Mars, designed to cover roughly 110 yards each Martian day over various terrain. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. The first rover has a launch window opening May 30, and the second rover a window opening June 25. KSC-03pd0983

KENNEDY SPACE CENTER, FLA. - In the Payload Hazardous Servicing Facility, an overhead crane is moved toward Mars Exploration Rover 2 (MER-2). The rover will be lifted and moved to the lander where it will be More

KENNEDY SPACE CENTER, FLA. - The Mars Exploration Rover 2 (MER-2) sits on the base petal of the lander while workers check the placement. Set to launch in Spring 2003, the MER Mission consists of two identical rovers. Landing at different regions of Mars, they are designed to cover roughly 110 yards each Martian day over various terrain. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. The first rover has a launch window opening May 30, and the second rover a window opening June 25. KSC-03pd0989

KENNEDY SPACE CENTER, FLA. - The Mars Exploration Rover 2 (MER-2) sits on the base petal of the lander while workers check the placement. Set to launch in Spring 2003, the MER Mission consists of two identica More

KENNEDY SPACE CENTER, FLA. - Workers prepare the shrouded Mars Exploration Rover 2 (MER-2) for mating to the lander. Set to launch in Spring 2003, the MER Mission consists of two identical rovers, landing at different regions of Mars, designed to cover roughly 110 yards each Martian day over various terrain. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. The first rover has a launch window opening May 30, and the second rover a window opening June 25. KSC-03pd0980

KENNEDY SPACE CENTER, FLA. - Workers prepare the shrouded Mars Exploration Rover 2 (MER-2) for mating to the lander. Set to launch in Spring 2003, the MER Mission consists of two identical rovers, landing at d More

KENNEDY SPACE CENTER, FLA. - In the Payload Hazardous Servicing Facility, both Mars Exploration Rovers (MER) can be seen, MER-1 in the foreground and MER-2 in the background. Workers are preparing the shrouded MER-2 for mating to the lander. Set to launch in Spring 2003, the MER Mission consists of two identical rovers, landing at different regions of Mars, designed to cover roughly 110 yards each Martian day over various terrain. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. The first rover has a launch window opening May 30, and the second rover a window opening June 25. KSC-03pd0982

KENNEDY SPACE CENTER, FLA. - In the Payload Hazardous Servicing Facility, both Mars Exploration Rovers (MER) can be seen, MER-1 in the foreground and MER-2 in the background. Workers are preparing the shroude More

KENNEDY SPACE CENTER, FLA. - In the Payload Hazardous Servicing Facility, both Mars Exploration Rovers (MER) can be seen, MER-1 at left and MER-2 in the background. Workers are preparing the shrouded MER-2 for mating to the lander. Set to launch in Spring 2003, the MER Mission consists of two identical rovers, landing at different regions of Mars, designed to cover roughly 110 yards each Martian day over various terrain. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. The first rover has a launch window opening May 30, and the second rover a window opening June 25. KSC-03pd0981

KENNEDY SPACE CENTER, FLA. - In the Payload Hazardous Servicing Facility, both Mars Exploration Rovers (MER) can be seen, MER-1 at left and MER-2 in the background. Workers are preparing the shrouded MER-2 fo More

KENNEDY SPACE CENTER, FLA. - Workers in the Payload Hazardous Servicing Facility examine the Mars Exploration Rover 2 (MER-2) as it is lowered onto the base petal of the lander. Set to launch in Spring 2003, the MER Mission consists of two identical rovers. Landing at different regions of Mars, they are designed to cover roughly 110 yards each Martian day over various terrain. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. The first rover has a launch window opening May 30, and the second rover a window opening June 25. KSC-03pd0986

KENNEDY SPACE CENTER, FLA. - Workers in the Payload Hazardous Servicing Facility examine the Mars Exploration Rover 2 (MER-2) as it is lowered onto the base petal of the lander. Set to launch in Spring 2003, More

KENNEDY SPACE CENTER, FLA. - Workers in the Payload Hazardous Servicing Facility watch as the Mars Exploration Rover 2 (MER-2) is lowered onto the base petal of the lander. Set to launch in Spring 2003, the MER Mission consists of two identical rovers. Landing at different regions of Mars, they are designed to cover roughly 110 yards each Martian day over various terrain. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. The first rover has a launch window opening May 30, and the second rover a window opening June 25. KSC-03pd0985

KENNEDY SPACE CENTER, FLA. - Workers in the Payload Hazardous Servicing Facility watch as the Mars Exploration Rover 2 (MER-2) is lowered onto the base petal of the lander. Set to launch in Spring 2003, the M More

KENNEDY SPACE CENTER, FLA. - Workers in the Payload Hazardous Servicing Facility check the Mars Exploration Rover 2 (MER-2) before it is lifted and moved to the lander where it will be mated to the base petal. Set to launch in Spring 2003, the MER Mission consists of two identical rovers, landing at different regions of Mars, designed to cover roughly 110 yards each Martian day over various terrain. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. The first rover has a launch window opening May 30, and the second rover a window opening June 25. KSC-03pd0984

KENNEDY SPACE CENTER, FLA. - Workers in the Payload Hazardous Servicing Facility check the Mars Exploration Rover 2 (MER-2) before it is lifted and moved to the lander where it will be mated to the base petal. More

KENNEDY SPACE CENTER, FLA. -- In the Payload Hazardous Servicing Facility, technicians prepare to close the lander petals and attached airbags of the Mars Exploration Rover 2 (MER-2) around the spacecraft prior to launch. The MER Mission consists of two identical rovers set to launch in Spring 2003. Landing at different regions of Mars, they are designed to cover roughly 110 yards each Martian day over various terrain. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. KSC-03pd1038

KENNEDY SPACE CENTER, FLA. -- In the Payload Hazardous Servicing Facility, technicians prepare to close the lander petals and attached airbags of the Mars Exploration Rover 2 (MER-2) around the spacecraft prior More

KENNEDY SPACE CENTER, FLA. -- In the Payload Hazardous Servicing Facility, technicians prepare to close the lander petals and attached airbags of the Mars Exploration Rover 2 (MER-2) around the spacecraft prior to launch. The MER Mission consists of two identical rovers set to launch in Spring 2003. Landing at different regions of Mars, they are designed to cover roughly 110 yards each Martian day over various terrain. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. KSC-03pd1037

KENNEDY SPACE CENTER, FLA. -- In the Payload Hazardous Servicing Facility, technicians prepare to close the lander petals and attached airbags of the Mars Exploration Rover 2 (MER-2) around the spacecraft prior More

KENNEDY SPACE CENTER, FLA. -- In the Payload Hazardous Servicing Facility, technicians prepare to close the lander petals and attached airbags of the Mars Exploration Rover 2 (MER-2) around the spacecraft prior to launch. The MER Mission consists of two identical rovers set to launch in Spring 2003. Landing at different regions of Mars, they are designed to cover roughly 110 yards each Martian day over various terrain. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. KSC-03pd1041

KENNEDY SPACE CENTER, FLA. -- In the Payload Hazardous Servicing Facility, technicians prepare to close the lander petals and attached airbags of the Mars Exploration Rover 2 (MER-2) around the spacecraft prior More

KENNEDY SPACE CENTER, FLA. -- In the Payload Hazardous Servicing Facility, technicians prepare to close the lander petals and attached airbags of the Mars Exploration Rover 2 (MER-2) around the spacecraft prior to launch. The MER Mission consists of two identical rovers set to launch in Spring 2003. Landing at different regions of Mars, they are designed to cover roughly 110 yards each Martian day over various terrain. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. KSC-03pd1039

KENNEDY SPACE CENTER, FLA. -- In the Payload Hazardous Servicing Facility, technicians prepare to close the lander petals and attached airbags of the Mars Exploration Rover 2 (MER-2) around the spacecraft prior More

KENNEDY SPACE CENTER, FLA. -- In the Payload Hazardous Servicing Facility, technicians make final preparations to the Mars Exploration Rover 2 (MER-2) before closing the lander petals and attached airbags around the spacecraft prior to launch. The MER Mission consists of two identical rovers set to launch in Spring 2003. Landing at different regions of Mars, they are designed to cover roughly 110 yards each Martian day over various terrain. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. KSC-03pd1035

KENNEDY SPACE CENTER, FLA. -- In the Payload Hazardous Servicing Facility, technicians make final preparations to the Mars Exploration Rover 2 (MER-2) before closing the lander petals and attached airbags aroun More

KENNEDY SPACE CENTER, FLA. -- In the Payload Hazardous Servicing Facility, technicians prepare to close the lander petals and attached airbags of the Mars Exploration Rover 2 (MER-2) around the spacecraft prior to launch. The MER Mission consists of two identical rovers set to launch in Spring 2003. Landing at different regions of Mars, they are designed to cover roughly 110 yards each Martian day over various terrain. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. KSC-03pd1034

KENNEDY SPACE CENTER, FLA. -- In the Payload Hazardous Servicing Facility, technicians prepare to close the lander petals and attached airbags of the Mars Exploration Rover 2 (MER-2) around the spacecraft prior More

KENNEDY SPACE CENTER, FLA. -- In the Payload Hazardous Servicing Facility, technicians prepare to close the lander petals and attached airbags of the Mars Exploration Rover 2 (MER-2) around the spacecraft prior to launch. The MER Mission consists of two identical rovers set to launch in Spring 2003. Landing at different regions of Mars, they are designed to cover roughly 110 yards each Martian day over various terrain. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. KSC-03pd1040

KENNEDY SPACE CENTER, FLA. -- In the Payload Hazardous Servicing Facility, technicians prepare to close the lander petals and attached airbags of the Mars Exploration Rover 2 (MER-2) around the spacecraft prior More

KENNEDY SPACE CENTER, FLA. -- In the Payload Hazardous Servicing Facility, technicians prepare to close the lander petals and attached airbags of the Mars Exploration Rover 2 (MER-2) around the spacecraft prior to launch. The MER Mission consists of two identical rovers set to launch in Spring 2003. Landing at different regions of Mars, they are designed to cover roughly 110 yards each Martian day over various terrain. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. KSC-03pd1033

KENNEDY SPACE CENTER, FLA. -- In the Payload Hazardous Servicing Facility, technicians prepare to close the lander petals and attached airbags of the Mars Exploration Rover 2 (MER-2) around the spacecraft prior More

KENNEDY SPACE CENTER, FLA. -- In the Payload Hazardous Servicing Facility, technicians prepare to close the lander petals and attached airbags of the Mars Exploration Rover 2 (MER-2) around the spacecraft prior to launch. The MER Mission consists of two identical rovers set to launch in Spring 2003. Landing at different regions of Mars, they are designed to cover roughly 110 yards each Martian day over various terrain. Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. KSC-03pd1036

KENNEDY SPACE CENTER, FLA. -- In the Payload Hazardous Servicing Facility, technicians prepare to close the lander petals and attached airbags of the Mars Exploration Rover 2 (MER-2) around the spacecraft prior More