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ASTRONAUT JAMES A. LOVELL, JR.. NASA public domain image colelction.

ASTRONAUT JAMES A. LOVELL, JR.. NASA public domain image colelction.

Astronaut James A. Lovell Jr., pilot for the National Aeronautics and Space Administration Gemini-7 spaceflight, walks to the elevator at Pad 19 one hour and 40 minutes before launch of the spacecraft. Moments ... More

A few lines on Magnus Mode, Richard Hodges & J. Newington Clark. Who are sentenc’d to stand one hour in the pillory at Charlestown; to have one of their ears cut off, and to be whipped 20 stripes at the public whipping-post, for making and passi

A few lines on Magnus Mode, Richard Hodges & J. Newington Clark. Who a...

Positive Photostat.; Verse.; Not in Evans. Available also through the Library of Congress web site in two forms: as facsimile page images and as full text in SGML. 2 duplicate copies Printed Ephemera Collection... More

View of Robben Island from a distance of one hour south south-east from the shore

View of Robben Island from a distance of one hour south south-east fro...

Gezicht op Robbeneiland vanuit het zuidoosten ten zuiden, op een afstand van een uur uit de wal.

One hour of American slavery is fraught with more misery than ages of that which we rose in rebellion to oppose

One hour of American slavery is fraught with more misery than ages of ...

Public domain scan of 18th-century drawing, free to use, no copyright restrictions image - Picryl description

Charles Joseph Travies de Villers - Encore une heure!! / One hour again!! / 12

Charles Joseph Travies de Villers - Encore une heure!! / One hour agai...

Galerie physionomique (Group title) 12e planche de "Galerie physionomique" Pas d'inscription au verso

Picryl description: Public domain image of portrait, 18th century print, free to use, no copyright restrictions

Picryl description: Public domain image of portrait, 18th century prin...

Public domain reproduction of portrait print engraving, free to use, no copyright restrictions image - Picryl description

Encore une heure !! / One hour again !! / N°12

Encore une heure !! / One hour again !! / N°12

Galerie physionomique (Group title) Planche n°12 de la suite de 31 planches intitulée Galerie physionomique, publiée dans le Charivari, lithographie, signée, datée Lettre - GALERIE PHYSIONOMIQUE. (...) N°.1. / ... More

Only one hour too late - Public domain American sheet music, 1877

Only one hour too late - Public domain American sheet music, 1877

From: Music Copyright Deposits, 1870-1885 (Microfilm M 3500) Also available through the Library of Congress Web Site as facsimile page images. (additional physical form)

I'll be back in one hour. - Victorian era public domain image

I'll be back in one hour. - Victorian era public domain image

Public domain photograph - 19th-century albumen print, free to use, no copyright restrictions image - Picryl description

VIP Bill A. Leads Tour - Public Domain image, National Parks Gallery

VIP Bill A. Leads Tour - Public Domain image, National Parks Gallery

Volunteer Bill leads a tour around the Great House at Casa Grande Ruins. Tours last about one hour (more if you get Bill telling tales) and hide in the shade as needed.

Ceremonies and Parades - Ceremonies as clock is pushed ahead one hour. Marcus M. Marks, Chairman of National Daylight Saving Movement, pushing the hands around from two to three on the master clock that controls the big dials on the Metropolitan Tower, New York City, as the Daylight Saving Law went into effect

Ceremonies and Parades - Ceremonies as clock is pushed ahead one hour....

Date Taken: 1918. - Photographer: Underwood & Underwood © Ceremonies and Parades Public domain photograph related to the United States in World War One, free to use, no copyright restrictions image - Picryl description

Ceremonies and Parades - Setting the country's clocks ahead one hour. Marcus M. Marks, Chairman of the National Daylight Saving Movement, giving the signal to set the hands of the great clock in the Metropolitan Tower, N. Y. City, ahead one hour. The signal was given at exactly 2 A.M. Sunday March 31, 1918 at Aldine Club, on a signal from Washington, D.C

Ceremonies and Parades - Setting the country's clocks ahead one hour. ...

Date Taken: 1918. - Photographer: Int. Film Ser. © Ceremonies and Parades

Saving daylight ends, for 1918, Sunday, Oct. 27th Set your clock back one hour at 2 A.M. Sunday October 27th.

Saving daylight ends, for 1918, Sunday, Oct. 27th Set your clock back ...

Poster showing Uncle Sam shaking hands with a clock-headed figure. The clock face reads "One hour of extra daylight," and the figure wears a "War service medal." Caption: "Goodbye, Uncle, see you next Spring." ... More

The Stockholders' Meetin' takes place in just about one hour --

The Stockholders' Meetin' takes place in just about one hour --

Gift; Ernest Fuhr estate; (DLC/PP-1934:0111). Forms part of: Cabinet of American illustration (Library of Congress). Published in: "Common Stock" by Octavus Roy Cohen, Saturday evening post, 195:14 (July 22, 1922).

One hour of love - gramophone disc, record label

One hour of love - gramophone disc, record label

Jazz/dance band Public domain photograph of gramophone disc label - sticker, record label, music record, free to use, no copyright restrictions image - Picryl description

New deal for Old Dobbin. Rep. Percy L. Gassaway (cowboy and D. of Okla) isn't letting the Wash. heat wave deter him from getting ready to promote his own scheme for bringing back prosperity. He is giving Congress a week from Monday to perfect a plan. If Congress falls down, Cowboy Gassaway is going to work on a multi-ramified program which in general specifies the return of the horse and fewer automobiles. In one hour his week on a D.C. street is counted 1800 cars. "That's whats wrong!" he suggests. People will buy a gallon of gas when they have no "bread" or likker in the house." Gassaway is enjoying his electric fan while he dictates to his secretary, 7/6/35

New deal for Old Dobbin. Rep. Percy L. Gassaway (cowboy and D. of Okla...

Public domain historical photo, free to use, no copyright restrictions image - Picryl description

New deal for Old Dobbin. Rep. Percy L. Gassaway (cowboy and D. of Okla) isn't letting the Wash. heat wave deter him from getting ready to promote his own scheme for bringing back prosperity. He is giving Congress a week from Monday to perfect a plan. If Congress falls down, Cowboy Gassaway is going to work on a multi-ramified program which in general specifies the return of the horse and fewer automobiles. In one hour his week on a D.C. street is counted 1800 cars. "That's whats wrong!" he suggests. People will buy a gallon of gas when they have no "bread" or likker in the house." Gassaway is enjoying his electric fan while he dictates to his secretary, 7635

New deal for Old Dobbin. Rep. Percy L. Gassaway (cowboy and D. of Okla...

A woman standing on top of a desk with a fan, Library of Congress Harris and Ewing collection Title from unverified caption data on negative or negative sleeve. Gift; Harris & Ewing, Inc. 1955. General informa... More

6,750 airplanes equal 15 Battleships--Cook. Washington, D.C., Feb. 25. Testifying before the House Naval Affairs Committee today, Rear Admiral Arthur B. Cook, Chief of the Navy Department Bureau of Aeronautics, declared that it would take 6,750 airplanes to give the same volume of fire in one hour of 15 battleships. The cost of the 6,750 planes would be approximately seven times that of the 15 battleships if replacement requirements of the airplanes were considered, 2/25/38

6,750 airplanes equal 15 Battleships--Cook. Washington, D.C., Feb. 25....

A black and white photo of three men sitting at a table. Public domain portrait photograph, free to use, no copyright restrictions image - Picryl description

Washington, D.C. On Sunday people wait as long as one hour to get into the municipal swimming pool

Washington, D.C. On Sunday people wait as long as one hour to get into...

Public domain photograph of Great Depression, farm, farmer, no copyright restrictions image - Picryl description

Tobruk, Libya. One hour after Tobruk fell, such scenes as this were common. Roofless buildings stand among scattered masonry and wreckage of motor vehicles in a corner of the bomb-torn town which had been one of the main supply ports for Rommel's army in North Africa

Tobruk, Libya. One hour after Tobruk fell, such scenes as this were co...

Picryl description: Public domain image of a damaged, burned, or destroyed building, natural disaster, war destruction, ruins, 19th-century architecture, free to use, no copyright restrictions.

A black and white photo of a group of people. Office of War Information Photograph

A black and white photo of a group of people. Office of War Informatio...

Title and other information from caption card. Transfer; United States. Office of War Information. Overseas Picture Division. Washington Division; 1944. More information about the FSA/OWI Collection is availabl... More

Tobruk, Libya. One hour after Tobruk fell, such scenes as this were common. Roofless buildings stand among scattered masonry and wreckage of motor vehicles in a corner of the bomb-torn town which had been one of the main supply ports for Rommel's army in North Africa

Tobruk, Libya. One hour after Tobruk fell, such scenes as this were co...

Image source: U.S. Army Signal Corps. Title and other information from caption card. Transfer; United States. Office of War Information. Overseas Picture Division. Washington Division; 1944. More information ab... More

Lease lend loadings. Welding wheels of Douglas twin-engine light bombers to a platform on deck insures safe transit from an American port to the bombers' destination. Crews of highly specialized workers are required to load assembled planes on shipboard and to prevent their becoming dislodged in heavy seas. These precautions are unnecessary when planes are sent unassembled in crates; however, most planes going to the Near East are shipped ready for flight within one hour after docking, since in many ports competent unloading equipment is lacking or has been demolished by Axis raids

Lease lend loadings. Welding wheels of Douglas twin-engine light bombe...

Picryl description: Public domain image of a bomber aircraft, military aviation, air forces, free to use, no copyright restrictions.

Lease lend loadings. Welding wheels of Douglas twin-engine light bombers to a platform on deck insures safe transit from an American port to the bombers' destination. Crews of highly specialized workers are required to load assembled planes on shipboard and to prevent their becoming dislodged in heavy seas. These precautions are unnecessary when planes are sent unassembled in crates; however, most planes going to the Near East are shipped ready for flight within one hour after docking, since in many ports competent unloading equipment is lacking or has been demolished by Axis raids

Lease lend loadings. Welding wheels of Douglas twin-engine light bombe...

Actual size of negative is C (approximately 4 x 5 inches). Annotation on negative. Photographed by Edward L. Gruber or Alfred T. Palmer. Title and other information from caption card and print in lot. Transfer;... More

Holabird ordnance depot, Baltimore, Maryland. After having been repaired, tires which need only spot recapping are cured in these section molds. They remain in these molds under pressure for about one hour and forty-five minutes

Holabird ordnance depot, Baltimore, Maryland. After having been repair...

Picryl description: Public domain photograph of a car, 1930s, free to use, no copyright restrictions.

A man working on a tire in a factory. Office of War Information Photograph

A man working on a tire in a factory. Office of War Information Photog...

Title and other information from print in lot. Transfer; United States. Office of War Information. Overseas Picture Division. Washington Division; 1944. More information about the FSA/OWI Collection is availabl... More

Holabird ordnance depot, Baltimore, Maryland. In the recapping shop, after the application of camelback, the tire is placed in a mold and is "cured" for about one hour and forty-five minutes. Here soldiers are removing it from the mold; as soon as it has cooled it is ready for use

Holabird ordnance depot, Baltimore, Maryland. In the recapping shop, a...

Picryl description: Public domain image of a factory, plant, manufacture, assembly line, industrial facility, early 20th-century industrial architecture, free to use, no copyright restrictions.

A couple of men standing next to each other. Office of War Information Photograph

A couple of men standing next to each other. Office of War Information...

Title and other information from print in lot. Transfer; United States. Office of War Information. Overseas Picture Division. Washington Division; 1944. More information about the FSA/OWI Collection is availabl... More

Flood damage from down pour - 1.38-inches in one hour. High water in Oak Creek near bridge adjacent to Visitor Center employee's parking area. Nearly identical to: ZION 8523, negative number 3431b. ; ZION Museum and Archives Image ZION 14691 ; ZION 15933

Flood damage from down pour - 1.38-inches in one hour. High water in O...

Public domain photograph of Zion National Park, mountains, nature, free to use, no copyright restrictions image - Picryl description

Flood damage from down pour - 1.38-inches in one hour. High water in Oak Creek near bridge adjacent to Visitor Center employee's parking area. ; ZION Museum and Archives Image ZION 8523 ; ZION 15933

Flood damage from down pour - 1.38-inches in one hour. High water in O...

Public domain photograph of Zion National Park, mountains, nature, free to use, no copyright restrictions image - Picryl description

The flood damage from down pour - 1.38-inches in one hour high water in Oak Creek near bridge adjacent to employee's parking area (Mission 66 Visitor Center and Museum and State Route 9). ; ZION Museum and Archives Image ZION 14689 ; ZION 14689

The flood damage from down pour - 1.38-inches in one hour high water i...

Picryl description: Public domain image of a park, trees, outdoors, free to use, no copyright restrictions.

The flood damage from down pour - 1.38-inches in one hour high water in Oak Creek near bridge adjacent to Visitor Center employee's parking area (under State Route 9). Many large boulders were washed away. ; ZION Museum and Archives Image ZION 14690 ; ZION

The flood damage from down pour - 1.38-inches in one hour high water i...

Public domain photograph of Zion National Park, mountains, nature, free to use, no copyright restrictions image - Picryl description

LITTLE JOE 5A - CAPSULE 14. NASA public domain image colelction.

LITTLE JOE 5A - CAPSULE 14. NASA public domain image colelction.

S61-01372 (21 Feb. 1961) --- Launch of the unmanned Mercury-Atlas 2 (MA-2) vehicle for a suborbital test flight of the Mercury capsule. The upper part of Atlas is stengthened by an eight-inch wide stainless ste... More

MERCURY-ATLAS (MA)-2 - LIFTOFF - CAPE

MERCURY-ATLAS (MA)-2 - LIFTOFF - CAPE

S61-01226 (21 Feb. 1961) --- Launch of the unmanned Mercury-Atlas 2 (MA-2) vehicle for a suborbital test flight of the Mercury capsule. The upper part of Atlas is stengthened by an eight-inch wide stainless ste... More

ASTRONAUT JAMES A. LOVELL, JR. - MISC. - GEMINI-TITAN (GT)-7 - PRELAUNCH ACTIVITY - CAPE

ASTRONAUT JAMES A. LOVELL, JR. - MISC. - GEMINI-TITAN (GT)-7 - PRELAU...

S65-61848 (4 Dec. 1965) --- Astronaut James A. Lovell Jr., pilot for the National Aeronautics and Space Administration Gemini-7 spaceflight, walks to the elevator at Pad 19 one hour and 40 minutes before launch... More

Senegal and Mauritania as seen from the Apollo 6 unmanned spacecraft

Senegal and Mauritania as seen from the Apollo 6 unmanned spacecraft

AS06-02-938 (6 April 1968) --- During the second revolution of the National Aeronautics and Space Administration's Apollo 6 spacecraft, this photograph of Senegal and Mauritania was taken at an altitude of 125 ... More

AS16-118-18880 - Apollo 16 - Apollo 16 Mission image - A good view of the Earth photographed about one hour after translunar injection of April 16, 1972

AS16-118-18880 - Apollo 16 - Apollo 16 Mission image - A good view of ...

The original database describes this as: Description: A good view of the Earth photographed about one hour after translunar injection of April 16, 1972. Although there is much cloud cover, the United States in... More

Apollo 16 view of the earth from translunar injection

Apollo 16 view of the earth from translunar injection

AS16-118-18880 (16 April 1972) --- A good view of Earth photographed about one hour after trans-lunar injection on April 16, 1972. Although there is much cloud cover, the United States in large part, most of Me... More

Astronaut Ronald Evans photographed during transearth coast EVA

Astronaut Ronald Evans photographed during transearth coast EVA

AS17-152-23391 (17 Dec. 1972) --- Astronaut Ronald E. Evans is photographed performing extravehicular activity during the Apollo 17 spacecraft's trans-Earth coast. During his EVA, Evans, command module pilot, r... More

Dynamic Test Chamber. NASA public domain image colelction.

Dynamic Test Chamber. NASA public domain image colelction.

(November 6, 1976) NASA's International Sun-Earth Explorer C (ISEE C) was undergoing testing and evaluation inside Goddard's dynamic test chamber when this photo was taken. Working inside a dynamic test chamber... More

Clouds and Open Ocean near the Bahamas

Clouds and Open Ocean near the Bahamas

STS004-41-1206 (27 June-4July 1982) --- Sunglint reflects off the water of the North Atlantic Ocean in an area to the east of the Bahamas Islands sometimes called the Sargasso Sea. The area has also been referr... More

Space Shuttle Discovery, Space Shuttle Projects

Space Shuttle Discovery, Space Shuttle Projects

The crew insignia for STS Flight 51-C includes the names of its five crewmembers. The STS 51-C mission marked the third trip of the Space Shuttle Discovery into space. It was the first Space Shuttle mission tot... More

During the B-2's fifth test flight it is being refueled by a KC-10. The flight lasted one hour and seventeen minutes. Northrop chief test pilot Bruce Hinds and AIr Force LT. COL. John Small of the B-2 Combined Test Force were at the controls. The test flights were designed to expand the flight envelope, demonstrate the handling qualities of the aircraft while flying in the air refueling position and validate the proper fuction of the aircraft' s subsystems

During the B-2's fifth test flight it is being refueled by a KC-10. Th...

The original finding aid described this photograph as: Base: Edwards Air Force Base State: California (CA) Country: United States Of America (USA) Scene Camera Operator: Unknown Release Status: Released to... More

An inflight overview of the B-2 Bomber on its fifth test flight. The flight lasted one hour and seventeen minutes. Northrop CHIEF Test Pilot Bruce Hinds and Air Force LT. COL. John Small of the B-2 Combined Test Force were at the controls. The first five test flights were designed to expand the flight envelope, demonstrate the handling qualities of the aircraft while flying in the air refueling position and validate the proper function of the aircraft's subsystems

An inflight overview of the B-2 Bomber on its fifth test flight. The f...

The original finding aid described this photograph as: Base: Edwards Air Force Base State: California (CA) Country: United States Of America (USA) Scene Camera Operator: Unknown Release Status: Released to... More

An overview in-flight image of the B-2 Bomber in its fifth test flight. The flight lasted one hour and seventeen minutes. Northrop CHIEF Test Pilot Bruce Hinds and Air Force LT. COL. John Small of the B-2 Combined Test Force were at the controls. The first five test flights were designed to expand the flight envelope, demonstrate the handling qualities of the aircraft while flying in the air refueling position and validate the proper function of the aircraft's subsystems

An overview in-flight image of the B-2 Bomber in its fifth test flight...

The original finding aid described this photograph as: Base: Edwards Air Force Base State: California (CA) Country: United States Of America (USA) Scene Camera Operator: Unknown Release Status: Released to... More

A C-130 aircraft from the 61st Airlift Squadron (ALS), Little Rock AFB, Ark., picks up cargo for Marine forces at Cap Haitian International Airport, Haiti. The cargo consisted of water purification units and the entire upload was accomplished in one hour

A C-130 aircraft from the 61st Airlift Squadron (ALS), Little Rock AFB...

The original finding aid described this photograph as: Subject Operation/Series: UPHOLD DEMOCRACY Base: Macdill Air Force Base State: Florida (FL) Country: United States Of America (USA) Scene Camera Opera... More

Linear Aerospike SR-71 Experiment (LASRE)

Linear Aerospike SR-71 Experiment (LASRE)

(October 31, 1997) A NASA SR-71 successfully completed its first flight October 31, 1997 as part of the NASA/Rocketdyne/Lockheed Martin Linear Aerospike SR-71 Experiment (LASRE) at NASA's Dryden Flight Research... More

Io Plume Monitoring (frames 1-36)

Io Plume Monitoring (frames 1-36)

A sequence of full disk Io images was taken prior to Galileo's second encounter with Ganymede. The purpose of these observations was to view all longitudes of Io and search for active volcanic plumes. The image... More

Atwell Mill Campground Road Sign

Atwell Mill Campground Road Sign

The drive time from the start of the Mineral King road is one hour. No RVs or trailers are allowed on this road or in the campgrounds in the Mineral King district.

Recording artist Jewel performs for the Sailors and Marines stationed aboard the aircraft carrier USS Harry S. Truman (CVN 75). The crew enjoyed a one hour United Servicemen's Organization (USO) show brought on board by the Secretary of Defense Willian S. Cohen to help raise morale for the men and women forward deployed for the holidays. TRUMAN is on a scheduled six-month deployment to the Mediterranean Sea and Arabian Gulf

Recording artist Jewel performs for the Sailors and Marines stationed ...

The original finding aid described this photograph as: Base: Uss Harry S. Truman (CVN 75) Country: Atlantic Ocean (AOC) Scene Camera Operator: PH2 Mark Ebert, USN Release Status: Released to Public Combined... More

The Dallas Cowboys Cheerleaders perform a dance routine for the crew in the hangar bay of USS Harry S. Truman (CVN 75). The Sailors and Marines stationed aboard the navy's newest nuclear powered aircraft carrier enjoyed a one hour United Servicemen's Organization (USO) show brought on board by the Secretary of Defense William S. Cohen to help raise morale for the men and women forward deployed for the holidays. TRUMAN is on a scheduled six-month deployment to the Mediterranean Sea and Arabian Gulf

The Dallas Cowboys Cheerleaders perform a dance routine for the crew i...

The original finding aid described this photograph as: Base: Uss Harry S. Truman (CVN 75) Country: Atlantic Ocean (AOC) Scene Camera Operator: PHAN Jason P. Taylor, USN Release Status: Released to Public Co... More

Recording artist Jewel performs for the Sailors and Marines stationed aboard the aircraft carrier USS Harry S. Truman (CVN 75). The crew enjoyed a one hour United Servicemen's Organization (USO) show brought on board by the Secretary of Defense William S. Cohen to help raise morale for the men and women forward deployed for the holidays. TRUMAN is on a scheduled six-month deployment to the Mediterranean Sea and Arabian Gulf

Recording artist Jewel performs for the Sailors and Marines stationed ...

The original finding aid described this photograph as: Base: Uss Harry S. Truman (CVN 75) Country: Atlantic Ocean (AOC) Scene Camera Operator: PH3 Dwain Willis, USN Release Status: Released to Public Combin... More

The Dallas Cowboys Cheerleaders perform a dance routine for the crew in the hangar bay of USS Harry S. Truman (CVN 75). The Sailors and Marines stationed aboard the navy's newest nuclear powered aircraft carrier enjoyed a one hour United Servicemen's Organization ( USO) show brought on board by the Secretary of Defense William S. Cohen to help raise morale for the men and women forward deployed for the holidays. TRUMAN is on a scheduled six-month deployment to the Mediterranean Sea and Arabian Gulf

The Dallas Cowboys Cheerleaders perform a dance routine for the crew i...

The original finding aid described this photograph as: Base: Uss Harry S. Truman (CVN 75) Country: Atlantic Ocean (AOC) Scene Camera Operator: PHAN Jason P. Taylor, USN Release Status: Released to Public Co... More

Recording artist Jewel performs for the Sailors and Marines stationed aboard the aircraft carrier USS HARRY S. TRUMAN (CVN 75). The crew enjoyed a one hour United Servicemen's Organization (USO) show brought on board by the Secretary of Defense Willian S. Cohen to help raise morale for the men and women forward deployed for the holidays. Truman is on a scheduled six-month deployment to the Mediterranean Sea and Persian Gulf

Recording artist Jewel performs for the Sailors and Marines stationed ...

The original finding aid described this photograph as: Base: USS Harry S. Truman (CVN 75) Scene Camera Operator: PH3 Justin Bane, USN Release Status: Released to Public Combined Military Service Digital Phot... More

Recording artist Jewel performs for the Sailors and Marines stationed aboard the aircraft carrier USS HARRY S. TRUMAN (CVN 75). The crew enjoyed a one hour United Servicemen's Organization (USO) show brought on board by the Secretary of Defense William S. Cohen to help raise morale for the men and women forward deployed for the holidays. Truman is on a scheduled six-month deployment to the Mediterranean Sea and Persian Gulf

Recording artist Jewel performs for the Sailors and Marines stationed ...

The original finding aid described this photograph as: Base: USS Harry S. Truman (CVN 75) Scene Camera Operator: PHAN John Beeman, USN Release Status: Released to Public Combined Military Service Digital Pho... More

4:25pm; Fire close-up - Public Domain image, National Parks Gallery

4:25pm; Fire close-up - Public Domain image, National Parks Gallery

Photographic zoom showing spread of fire after one hour.

4:25pm; fire view - Public Domain image, National Parks Gallery

4:25pm; fire view - Public Domain image, National Parks Gallery

Taken as the park fire crew was arriving in the Chisos Basin, appox. one hour after the start of the fire.

CAPE CANAVERAL, Fla. – Engine ignition begins liftoff of the United Launch Alliance Delta II Heavy rocket carrying NASA’s twin Gravity Recovery and Interior Laboratory (GRAIL) mission off Space Launch Complex 17B on Cape Canaveral Air Force Station in Florida. The spacecraft launched at 9:08:52 a.m. EDT Sept. 10. GRAIL-A will separate from the second stage of the rocket at about one hour, 21 minutes after liftoff, followed by GRAIL-B at 90 minutes after launch. The spacecraft are embarking on a three-month journey to reach the moon. GRAIL will fly twin spacecraft in tandem around the moon to precisely measure and map variations in the moon's gravitational field. The mission will provide the most accurate global gravity field to date for any planet, including Earth. This detailed information will reveal differences in the density of the moon's crust and mantle and will help answer fundamental questions about the moon's internal structure, thermal evolution, and history of collisions with asteroids. The aim is to map the moon's gravity field so completely that future moon vehicles can safely navigate anywhere on the moon’s surface. For more information, visit http://www.nasa.gov/grail. Photo credit: NASA/ Tony Gray and Tim Powers KSC-2011-6915

CAPE CANAVERAL, Fla. – Engine ignition begins liftoff of the United La...

CAPE CANAVERAL, Fla. – Engine ignition begins liftoff of the United Launch Alliance Delta II Heavy rocket carrying NASA’s twin Gravity Recovery and Interior Laboratory (GRAIL) mission off Space Launch Complex 1... More

CAPE CANAVERAL, Fla. – Backdropped by a beautiful blue sky, the United Launch Alliance Delta II Heavy rocket propels NASA’s twin Gravity Recovery and Interior Laboratory (GRAIL) mission off Space Launch Complex 17B on Cape Canaveral Air Force Station in Florida. The spacecraft launched at 9:08:52 a.m. EDT Sept. 10. GRAIL-A will separate from the second stage of the rocket at about one hour, 21 minutes after liftoff, followed by GRAIL-B at 90 minutes after launch. The spacecraft are embarking on a three-month journey to reach the moon. GRAIL will fly twin spacecraft in tandem around the moon to precisely measure and map variations in the moon's gravitational field. The mission will provide the most accurate global gravity field to date for any planet, including Earth. This detailed information will reveal differences in the density of the moon's crust and mantle and will help answer fundamental questions about the moon's internal structure, thermal evolution, and history of collisions with asteroids. The aim is to map the moon's gravity field so completely that future moon vehicles can safely navigate anywhere on the moon’s surface. For more information, visit http://www.nasa.gov/grail. Photo credit: NASA/Kenny Allen KSC-2011-6932

CAPE CANAVERAL, Fla. – Backdropped by a beautiful blue sky, the United...

CAPE CANAVERAL, Fla. – Backdropped by a beautiful blue sky, the United Launch Alliance Delta II Heavy rocket propels NASA’s twin Gravity Recovery and Interior Laboratory (GRAIL) mission off Space Launch Complex... More

CAPE CANAVERAL, Fla. – Fire lights up the sky as a United Launch Alliance Delta II Heavy rocket lofts NASA’s Gravity Recovery and Interior Laboratory (GRAIL) mission into space. Liftoff from Space Launch Complex 17B on Cape Canaveral Air Force Station in Florida was at 9:08:52 a.m. EDT Sept.10. GRAIL-A will separate from the second stage of the rocket at about one hour, 21 minutes after liftoff, followed by GRAIL-B at 90 minutes after launch. The spacecraft are embarking on a three-month journey to reach the moon. GRAIL will fly twin spacecraft in tandem around the moon to precisely measure and map variations in the moon's gravitational field. The mission will provide the most accurate global gravity field to date for any planet, including Earth. This detailed information will reveal differences in the density of the moon's crust and mantle and will help answer fundamental questions about the moon's internal structure, thermal evolution, and history of collisions with asteroids. The aim is to map the moon's gravity field so completely that future moon vehicles can safely navigate anywhere on the moon’s surface. For more information, visit http://www.nasa.gov/grail. Photo credit: NASA/Darrell McCall KSC-2011-6863

CAPE CANAVERAL, Fla. – Fire lights up the sky as a United Launch Allia...

CAPE CANAVERAL, Fla. – Fire lights up the sky as a United Launch Alliance Delta II Heavy rocket lofts NASA’s Gravity Recovery and Interior Laboratory (GRAIL) mission into space. Liftoff from Space Launch Comple... More

CAPE CANAVERAL, Fla. – At liftoff, flames and smoke from the engines surround the United Launch Alliance Delta II rocket carrying NASA’s twin Gravity Recovery and Interior Laboratory (GRAIL) mission off Space Launch Complex 17B on Cape Canaveral Air Force Station in Florida. The spacecraft launched at 9:08:52 a.m. EDT Sept. 10. GRAIL-A will separate from the second stage of the rocket at about one hour, 21 minutes after liftoff, followed by GRAIL-B at 90 minutes after launch. The spacecraft are embarking on a three-month journey to reach the moon. GRAIL will fly twin spacecraft in tandem around the moon to precisely measure and map variations in the moon's gravitational field. The mission will provide the most accurate global gravity field to date for any planet, including Earth. This detailed information will reveal differences in the density of the moon's crust and mantle and will help answer fundamental questions about the moon's internal structure, thermal evolution, and history of collisions with asteroids. The aim is to map the moon's gravity field so completely that future moon vehicles can safely navigate anywhere on the moon’s surface. For more information, visit http://www.nasa.gov/grail. Photo credit: NASA/ Tony Gray and Tim Powers KSC-2011-6919

CAPE CANAVERAL, Fla. – At liftoff, flames and smoke from the engines s...

CAPE CANAVERAL, Fla. – At liftoff, flames and smoke from the engines surround the United Launch Alliance Delta II rocket carrying NASA’s twin Gravity Recovery and Interior Laboratory (GRAIL) mission off Space L... More

CAPE CANAVERAL, Fla. – Engine ignition begins liftoff of the United Launch Alliance Delta II Heavy rocket carrying NASA’s twin Gravity Recovery and Interior Laboratory (GRAIL) mission off Space Launch Complex 17B on Cape Canaveral Air Force Station in Florida. At right is the pad’s mobile service tower. The spacecraft launched at 9:08:52 a.m. EDT Sept. 10. GRAIL-A will separate from the second stage of the rocket at about one hour, 21 minutes after liftoff, followed by GRAIL-B at 90 minutes after launch. The spacecraft are embarking on a three-month journey to reach the moon. GRAIL will fly twin spacecraft in tandem around the moon to precisely measure and map variations in the moon's gravitational field. The mission will provide the most accurate global gravity field to date for any planet, including Earth. This detailed information will reveal differences in the density of the moon's crust and mantle and will help answer fundamental questions about the moon's internal structure, thermal evolution, and history of collisions with asteroids. The aim is to map the moon's gravity field so completely that future moon vehicles can safely navigate anywhere on the moon’s surface. For more information, visit http://www.nasa.gov/grail. Photo credit: NASA/Tom Farrar and Tony Gray KSC-2011-6901

CAPE CANAVERAL, Fla. – Engine ignition begins liftoff of the United La...

CAPE CANAVERAL, Fla. – Engine ignition begins liftoff of the United Launch Alliance Delta II Heavy rocket carrying NASA’s twin Gravity Recovery and Interior Laboratory (GRAIL) mission off Space Launch Complex 1... More

CAPE CANAVERAL, Fla. – Backdropped by a beautiful blue sky, the United Launch Alliance Delta II Heavy rocket propels NASA’s twin Gravity Recovery and Interior Laboratory (GRAIL) mission off Space Launch Complex 17B on Cape Canaveral Air Force Station in Florida. The spacecraft launched at 9:08:52 a.m. EDT Sept. 10. GRAIL-A will separate from the second stage of the rocket at about one hour, 21 minutes after liftoff, followed by GRAIL-B at 90 minutes after launch. The spacecraft are embarking on a three-month journey to reach the moon. GRAIL will fly twin spacecraft in tandem around the moon to precisely measure and map variations in the moon's gravitational field. The mission will provide the most accurate global gravity field to date for any planet, including Earth. This detailed information will reveal differences in the density of the moon's crust and mantle and will help answer fundamental questions about the moon's internal structure, thermal evolution, and history of collisions with asteroids. The aim is to map the moon's gravity field so completely that future moon vehicles can safely navigate anywhere on the moon’s surface. For more information, visit http://www.nasa.gov/grail. Photo credit: NASA/Kenny Allen KSC-2011-6931

CAPE CANAVERAL, Fla. – Backdropped by a beautiful blue sky, the United...

CAPE CANAVERAL, Fla. – Backdropped by a beautiful blue sky, the United Launch Alliance Delta II Heavy rocket propels NASA’s twin Gravity Recovery and Interior Laboratory (GRAIL) mission off Space Launch Complex... More

CAPE CANAVERAL, Fla. –The United Launch Alliance Delta II Heavy rocket propels NASA’s twin Gravity Recovery and Interior Laboratory (GRAIL) mission into the clouds over Space Launch Complex 17B on Cape Canaveral Air Force Station in Florida. Liftoff was at 9:08:52 a.m. EDT Sept.10. GRAIL-A will separate from the second stage of the rocket at about one hour, 21 minutes after liftoff, followed by GRAIL-B at 90 minutes after launch. The spacecraft are embarking on a three-month journey to reach the moon. GRAIL will fly twin spacecraft in tandem around the moon to precisely measure and map variations in the moon's gravitational field. The mission will provide the most accurate global gravity field to date for any planet, including Earth. This detailed information will reveal differences in the density of the moon's crust and mantle and will help answer fundamental questions about the moon's internal structure, thermal evolution, and history of collisions with asteroids. The aim is to map the moon's gravity field so completely that future moon vehicles can safely navigate anywhere on the moon’s surface. For more information, visit http://www.nasa.gov/grail. Photo credit: NASA/Fletcher Hildreth KSC-2011-6858

CAPE CANAVERAL, Fla. –The United Launch Alliance Delta II Heavy rocket...

CAPE CANAVERAL, Fla. –The United Launch Alliance Delta II Heavy rocket propels NASA’s twin Gravity Recovery and Interior Laboratory (GRAIL) mission into the clouds over Space Launch Complex 17B on Cape Canavera... More

CAPE CANAVERAL, Fla. – Flames and smoke from the engines surround the United Launch Alliance Delta II rocket at liftoff carrying NASA’s twin Gravity Recovery and Interior Laboratory (GRAIL) mission off Space Launch Complex 17B on Cape Canaveral Air Force Station in Florida. The spacecraft launched at 9:08:52 a.m. EDT Sept. 10. GRAIL-A will separate from the second stage of the rocket at about one hour, 21 minutes after liftoff, followed by GRAIL-B at 90 minutes after launch. The spacecraft are embarking on a three-month journey to reach the moon. GRAIL will fly twin spacecraft in tandem around the moon to precisely measure and map variations in the moon's gravitational field. The mission will provide the most accurate global gravity field to date for any planet, including Earth. This detailed information will reveal differences in the density of the moon's crust and mantle and will help answer fundamental questions about the moon's internal structure, thermal evolution, and history of collisions with asteroids. The aim is to map the moon's gravity field so completely that future moon vehicles can safely navigate anywhere on the moon’s surface. For more information, visit http://www.nasa.gov/grail. Photo credit: NASA/Sandra Joseph and Don Kight KSC-2011-6893

CAPE CANAVERAL, Fla. – Flames and smoke from the engines surround the ...

CAPE CANAVERAL, Fla. – Flames and smoke from the engines surround the United Launch Alliance Delta II rocket at liftoff carrying NASA’s twin Gravity Recovery and Interior Laboratory (GRAIL) mission off Space La... More

CAPE CANAVERAL, Fla. – Rising from fire and smoke under a blue sky, NASA’s twin Gravity Recovery and Interior Laboratory (GRAIL) mission launches atop a United Launch Alliance Delta II Heavy rocket leaving from Space Launch Complex 17B on Cape Canaveral Air Force Station in Florida. Liftoff was at 9:08:52 a.m. EDT Sept. 10. GRAIL-A will separate from the second stage of the rocket at about one hour, 21 minutes after liftoff, followed by GRAIL-B at 90 minutes after launch. The spacecraft are embarking on a three-month journey to reach the moon. GRAIL will fly twin spacecraft in tandem around the moon to precisely measure and map variations in the moon's gravitational field. The mission will provide the most accurate global gravity field to date for any planet, including Earth. This detailed information will reveal differences in the density of the moon's crust and mantle and will help answer fundamental questions about the moon's internal structure, thermal evolution, and history of collisions with asteroids. The aim is to map the moon's gravity field so completely that future moon vehicles can safely navigate anywhere on the moon’s surface. For more information, visit http://www.nasa.gov/grail. Photo credit: NASA/Sandra Joseph and Don Kight KSC-2011-6914

CAPE CANAVERAL, Fla. – Rising from fire and smoke under a blue sky, NA...

CAPE CANAVERAL, Fla. – Rising from fire and smoke under a blue sky, NASA’s twin Gravity Recovery and Interior Laboratory (GRAIL) mission launches atop a United Launch Alliance Delta II Heavy rocket leaving from... More

CAPE CANAVERAL, Fla. – Under a blue sky, engine ignition begins liftoff of the United Launch Alliance Delta II Heavy rocket carrying NASA’s twin Gravity Recovery and Interior Laboratory (GRAIL) mission off Space Launch Complex 17B on Cape Canaveral Air Force Station in Florida. The spacecraft launched at 9:08:52 a.m. EDT Sept. 10. GRAIL-A will separate from the second stage of the rocket at about one hour, 21 minutes after liftoff, followed by GRAIL-B at 90 minutes after launch. The spacecraft are embarking on a three-month journey to reach the moon. GRAIL will fly twin spacecraft in tandem around the moon to precisely measure and map variations in the moon's gravitational field. The mission will provide the most accurate global gravity field to date for any planet, including Earth. This detailed information will reveal differences in the density of the moon's crust and mantle and will help answer fundamental questions about the moon's internal structure, thermal evolution, and history of collisions with asteroids. The aim is to map the moon's gravity field so completely that future moon vehicles can safely navigate anywhere on the moon’s surface. For more information, visit http://www.nasa.gov/grail. Photo credit: NASA/Sandra Joseph and Don Kight KSC-2011-6909

CAPE CANAVERAL, Fla. – Under a blue sky, engine ignition begins liftof...

CAPE CANAVERAL, Fla. – Under a blue sky, engine ignition begins liftoff of the United Launch Alliance Delta II Heavy rocket carrying NASA’s twin Gravity Recovery and Interior Laboratory (GRAIL) mission off Spac... More

CAPE CANAVERAL, Fla. – Rising from fire and smoke after liftoff, NASA’s twin Gravity Recovery and Interior Laboratory (GRAIL) mission launches atop a United Launch Alliance Delta II Heavy rocket leaving from Space Launch Complex 17B on Cape Canaveral Air Force Station in Florida. At left is the pad’s mobile service tower. The spacecraft launched at 9:08:52 a.m. EDT Sept. 10. GRAIL-A will separate from the second stage of the rocket at about one hour, 21 minutes after liftoff, followed by GRAIL-B at 90 minutes after launch. The spacecraft are embarking on a three-month journey to reach the moon. GRAIL will fly twin spacecraft in tandem around the moon to precisely measure and map variations in the moon's gravitational field. The mission will provide the most accurate global gravity field to date for any planet, including Earth. This detailed information will reveal differences in the density of the moon's crust and mantle and will help answer fundamental questions about the moon's internal structure, thermal evolution, and history of collisions with asteroids. The aim is to map the moon's gravity field so completely that future moon vehicles can safely navigate anywhere on the moon’s surface. For more information, visit http://www.nasa.gov/grail. Photo credit: NASA/Kenny Allen KSC-2011-6930

CAPE CANAVERAL, Fla. – Rising from fire and smoke after liftoff, NASA’...

CAPE CANAVERAL, Fla. – Rising from fire and smoke after liftoff, NASA’s twin Gravity Recovery and Interior Laboratory (GRAIL) mission launches atop a United Launch Alliance Delta II Heavy rocket leaving from Sp... More

CAPE CANAVERAL, Fla. – At ignition, flames and smoke from the engines begin liftoff of the United Launch Alliance Delta II Heavy rocket carrying NASA’s twin Gravity Recovery and Interior Laboratory (GRAIL) mission off Space Launch Complex 17B on Cape Canaveral Air Force Station in Florida. The spacecraft launched at 9:08:52 a.m. EDT Sept. 10. GRAIL-A will separate from the second stage of the rocket at about one hour, 21 minutes after liftoff, followed by GRAIL-B at 90 minutes after launch. The spacecraft are embarking on a three-month journey to reach the moon. GRAIL will fly twin spacecraft in tandem around the moon to precisely measure and map variations in the moon's gravitational field. The mission will provide the most accurate global gravity field to date for any planet, including Earth. This detailed information will reveal differences in the density of the moon's crust and mantle and will help answer fundamental questions about the moon's internal structure, thermal evolution, and history of collisions with asteroids. The aim is to map the moon's gravity field so completely that future moon vehicles can safely navigate anywhere on the moon’s surface. For more information, visit http://www.nasa.gov/grail. Photo credit: NASA/ Tony Gray and Tim Powers KSC-2011-6917

CAPE CANAVERAL, Fla. – At ignition, flames and smoke from the engines ...

CAPE CANAVERAL, Fla. – At ignition, flames and smoke from the engines begin liftoff of the United Launch Alliance Delta II Heavy rocket carrying NASA’s twin Gravity Recovery and Interior Laboratory (GRAIL) miss... More

CAPE CANAVERAL, Fla. – At ignition, flames and smoke from the engines begin liftoff of the United Launch Alliance Delta II Heavy rocket carrying NASA’s twin Gravity Recovery and Interior Laboratory (GRAIL) mission off Space Launch Complex 17B on Cape Canaveral Air Force Station in Florida. The spacecraft launched at 9:08:52 a.m. EDT Sept. 10. GRAIL-A will separate from the second stage of the rocket at about one hour, 21 minutes after liftoff, followed by GRAIL-B at 90 minutes after launch. The spacecraft are embarking on a three-month journey to reach the moon. GRAIL will fly twin spacecraft in tandem around the moon to precisely measure and map variations in the moon's gravitational field. The mission will provide the most accurate global gravity field to date for any planet, including Earth. This detailed information will reveal differences in the density of the moon's crust and mantle and will help answer fundamental questions about the moon's internal structure, thermal evolution, and history of collisions with asteroids. The aim is to map the moon's gravity field so completely that future moon vehicles can safely navigate anywhere on the moon’s surface. For more information, visit http://www.nasa.gov/grail. Photo credit: NASA/ Tony Gray and Tim Powers KSC-2011-6918

CAPE CANAVERAL, Fla. – At ignition, flames and smoke from the engines ...

CAPE CANAVERAL, Fla. – At ignition, flames and smoke from the engines begin liftoff of the United Launch Alliance Delta II Heavy rocket carrying NASA’s twin Gravity Recovery and Interior Laboratory (GRAIL) miss... More

CAPE CANAVERAL, Fla. – At ignition, flames from the engines begin liftoff of the United Launch Alliance Delta II Heavy rocket carrying NASA’s twin Gravity Recovery and Interior Laboratory (GRAIL) mission off Space Launch Complex 17B on Cape Canaveral Air Force Station. The spacecraft launched at 9:08:52 a.m. EDT Sept. 10. GRAIL-A will separate from the second stage of the rocket at about one hour, 21 minutes after liftoff, followed by GRAIL-B at 90 minutes after launch. The spacecraft are embarking on a three-month journey to reach the moon. GRAIL will fly twin spacecraft in tandem around the moon to precisely measure and map variations in the moon's gravitational field. The mission will provide the most accurate global gravity field to date for any planet, including Earth. This detailed information will reveal differences in the density of the moon's crust and mantle and will help answer fundamental questions about the moon's internal structure, thermal evolution, and history of collisions with asteroids. The aim is to map the moon's gravity field so completely that future moon vehicles can safely navigate anywhere on the moon’s surface. For more information, visit http://www.nasa.gov/grail. Photo credit: NASA/Sandra Joseph and Don Kight KSC-2011-6891

CAPE CANAVERAL, Fla. – At ignition, flames from the engines begin lift...

CAPE CANAVERAL, Fla. – At ignition, flames from the engines begin liftoff of the United Launch Alliance Delta II Heavy rocket carrying NASA’s twin Gravity Recovery and Interior Laboratory (GRAIL) mission off Sp... More

CAPE CANAVERAL, Fla. – Plumes of smoke surround of the United Launch Alliance Delta II Heavy rocket carrying NASA’s twin Gravity Recovery and Interior Laboratory (GRAIL) mission off Space Launch Complex 17B on Cape Canaveral Air Force Station in Florida. At right is the pad’s mobile service tower. The spacecraft launched at 9:08:52 a.m. EDT Sept. 10. GRAIL-A will separate from the second stage of the rocket at about one hour, 21 minutes after liftoff, followed by GRAIL-B at 90 minutes after launch. The spacecraft are embarking on a three-month journey to reach the moon. GRAIL will fly twin spacecraft in tandem around the moon to precisely measure and map variations in the moon's gravitational field. The mission will provide the most accurate global gravity field to date for any planet, including Earth. This detailed information will reveal differences in the density of the moon's crust and mantle and will help answer fundamental questions about the moon's internal structure, thermal evolution, and history of collisions with asteroids. The aim is to map the moon's gravity field so completely that future moon vehicles can safely navigate anywhere on the moon’s surface. For more information, visit http://www.nasa.gov/grail. Photo credit: NASA/Tom Farrar and Tony Gray KSC-2011-6904

CAPE CANAVERAL, Fla. – Plumes of smoke surround of the United Launch A...

CAPE CANAVERAL, Fla. – Plumes of smoke surround of the United Launch Alliance Delta II Heavy rocket carrying NASA’s twin Gravity Recovery and Interior Laboratory (GRAIL) mission off Space Launch Complex 17B on ... More

CAPE CANAVERAL, Fla. – At ignition, flames and smoke from the engines begin liftoff of the United Launch Alliance Delta II Heavy rocket carrying NASA’s twin Gravity Recovery and Interior Laboratory (GRAIL) mission off Space Launch Complex 17B on Cape Canaveral Air Force Station in Florida. At right is the pad’s mobile service tower. The spacecraft launched at 9:08:52 a.m. EDT Sept. 10. GRAIL-A will separate from the second stage of the rocket at about one hour, 21 minutes after liftoff, followed by GRAIL-B at 90 minutes after launch. The spacecraft are embarking on a three-month journey to reach the moon. GRAIL will fly twin spacecraft in tandem around the moon to precisely measure and map variations in the moon's gravitational field. The mission will provide the most accurate global gravity field to date for any planet, including Earth. This detailed information will reveal differences in the density of the moon's crust and mantle and will help answer fundamental questions about the moon's internal structure, thermal evolution, and history of collisions with asteroids. The aim is to map the moon's gravity field so completely that future moon vehicles can safely navigate anywhere on the moon’s surface. For more information, visit http://www.nasa.gov/grail. Photo credit: NASA/Tom Farrar and Tony Gray KSC-2011-6902

CAPE CANAVERAL, Fla. – At ignition, flames and smoke from the engines ...

CAPE CANAVERAL, Fla. – At ignition, flames and smoke from the engines begin liftoff of the United Launch Alliance Delta II Heavy rocket carrying NASA’s twin Gravity Recovery and Interior Laboratory (GRAIL) miss... More

CAPE CANAVERAL, Fla. – Rising from fire and smoke after liftoff, NASA’s twin Gravity Recovery and Interior Laboratory (GRAIL) mission launches atop a United Launch Alliance Delta II Heavy rocket leaving from Space Launch Complex 17B on Cape Canaveral Air Force Station in Florida. Liftoff was at 9:08:52 a.m. EDT Sept. 10. GRAIL-A will separate from the second stage of the rocket at about one hour, 21 minutes after liftoff, followed by GRAIL-B at 90 minutes after launch. The spacecraft are embarking on a three-month journey to reach the moon. GRAIL will fly twin spacecraft in tandem around the moon to precisely measure and map variations in the moon's gravitational field. The mission will provide the most accurate global gravity field to date for any planet, including Earth. This detailed information will reveal differences in the density of the moon's crust and mantle and will help answer fundamental questions about the moon's internal structure, thermal evolution, and history of collisions with asteroids. The aim is to map the moon's gravity field so completely that future moon vehicles can safely navigate anywhere on the moon’s surface. For more information, visit http://www.nasa.gov/grail. Photo credit: NASA/ Tony Gray and Tim Powers KSC-2011-6923

CAPE CANAVERAL, Fla. – Rising from fire and smoke after liftoff, NASA’...

CAPE CANAVERAL, Fla. – Rising from fire and smoke after liftoff, NASA’s twin Gravity Recovery and Interior Laboratory (GRAIL) mission launches atop a United Launch Alliance Delta II Heavy rocket leaving from Sp... More

CAPE CANAVERAL, Fla. – Overlooking the Central Florida coast, engine ignition begins liftoff of the United Launch Alliance Delta II Heavy rocket carrying NASA’s twin Gravity Recovery and Interior Laboratory (GRAIL) mission off Space Launch Complex 17B on Cape Canaveral Air Force Station. The spacecraft launched at 9:08:52 a.m. EDT Sept. 10. GRAIL-A will separate from the second stage of the rocket at about one hour, 21 minutes after liftoff, followed by GRAIL-B at 90 minutes after launch. The spacecraft are embarking on a three-month journey to reach the moon. GRAIL will fly twin spacecraft in tandem around the moon to precisely measure and map variations in the moon's gravitational field. The mission will provide the most accurate global gravity field to date for any planet, including Earth. This detailed information will reveal differences in the density of the moon's crust and mantle and will help answer fundamental questions about the moon's internal structure, thermal evolution, and history of collisions with asteroids. The aim is to map the moon's gravity field so completely that future moon vehicles can safely navigate anywhere on the moon’s surface. For more information, visit http://www.nasa.gov/grail. Photo credit: NASA/Sandra Joseph and Don Kight KSC-2011-6895

CAPE CANAVERAL, Fla. – Overlooking the Central Florida coast, engine i...

CAPE CANAVERAL, Fla. – Overlooking the Central Florida coast, engine ignition begins liftoff of the United Launch Alliance Delta II Heavy rocket carrying NASA’s twin Gravity Recovery and Interior Laboratory (GR... More

CAPE CANAVERAL, Fla. – Backdropped by a beautiful blue sky, at ignition, flames and smoke from the engines begin liftoff of the United Launch Alliance Delta II Heavy rocket carrying NASA’s twin Gravity Recovery and Interior Laboratory (GRAIL) mission off Space Launch Complex 17B on Cape Canaveral Air Force Station in Florida. At right is the pad’s mobile service tower. The spacecraft launched at 9:08:52 a.m. EDT Sept. 10. GRAIL-A will separate from the second stage of the rocket at about one hour, 21 minutes after liftoff, followed by GRAIL-B at 90 minutes after launch. The spacecraft are embarking on a three-month journey to reach the moon. GRAIL will fly twin spacecraft in tandem around the moon to precisely measure and map variations in the moon's gravitational field. The mission will provide the most accurate global gravity field to date for any planet, including Earth. This detailed information will reveal differences in the density of the moon's crust and mantle and will help answer fundamental questions about the moon's internal structure, thermal evolution, and history of collisions with asteroids. The aim is to map the moon's gravity field so completely that future moon vehicles can safely navigate anywhere on the moon’s surface. For more information, visit http://www.nasa.gov/grail. Photo credit: NASA/Sandra Joseph and Don Kight KSC-2011-6911

CAPE CANAVERAL, Fla. – Backdropped by a beautiful blue sky, at ignitio...

CAPE CANAVERAL, Fla. – Backdropped by a beautiful blue sky, at ignition, flames and smoke from the engines begin liftoff of the United Launch Alliance Delta II Heavy rocket carrying NASA’s twin Gravity Recovery... More

CAPE CANAVERAL, Fla. – Plumes of smoke surround of the United Launch Alliance Delta II Heavy rocket carrying NASA’s twin Gravity Recovery and Interior Laboratory (GRAIL) mission off Space Launch Complex 17B on Cape Canaveral Air Force Station in Florida. At right is the pad’s mobile service tower. The spacecraft launched at 9:08:52 a.m. EDT Sept. 10. GRAIL-A will separate from the second stage of the rocket at about one hour, 21 minutes after liftoff, followed by GRAIL-B at 90 minutes after launch. The spacecraft are embarking on a three-month journey to reach the moon. GRAIL will fly twin spacecraft in tandem around the moon to precisely measure and map variations in the moon's gravitational field. The mission will provide the most accurate global gravity field to date for any planet, including Earth. This detailed information will reveal differences in the density of the moon's crust and mantle and will help answer fundamental questions about the moon's internal structure, thermal evolution, and history of collisions with asteroids. The aim is to map the moon's gravity field so completely that future moon vehicles can safely navigate anywhere on the moon’s surface. For more information, visit http://www.nasa.gov/grail. Photo credit: NASA/Tom Farrar and Tony Gray KSC-2011-6905

CAPE CANAVERAL, Fla. – Plumes of smoke surround of the United Launch A...

CAPE CANAVERAL, Fla. – Plumes of smoke surround of the United Launch Alliance Delta II Heavy rocket carrying NASA’s twin Gravity Recovery and Interior Laboratory (GRAIL) mission off Space Launch Complex 17B on ... More

CAPE CANAVERAL, Fla. – Over a group of trees and bushes, the United Launch Alliance Delta II Heavy rocket carrying NASA’s twin Gravity Recovery and Interior Laboratory (GRAIL) mission launches off Space Launch Complex 17B on Cape Canaveral Air Force Station in Florida. At left is the pad’s mobile service tower. The spacecraft launched at 9:08:52 a.m. EDT Sept. 10. GRAIL-A will separate from the second stage of the rocket at about one hour, 21 minutes after liftoff, followed by GRAIL-B at 90 minutes after launch. The spacecraft are embarking on a three-month journey to reach the moon. GRAIL will fly twin spacecraft in tandem around the moon to precisely measure and map variations in the moon's gravitational field. The mission will provide the most accurate global gravity field to date for any planet, including Earth. This detailed information will reveal differences in the density of the moon's crust and mantle and will help answer fundamental questions about the moon's internal structure, thermal evolution, and history of collisions with asteroids. The aim is to map the moon's gravity field so completely that future moon vehicles can safely navigate anywhere on the moon’s surface. For more information, visit http://www.nasa.gov/grail. Photo credit: NASA/Kenny Allen KSC-2011-6928

CAPE CANAVERAL, Fla. – Over a group of trees and bushes, the United La...

CAPE CANAVERAL, Fla. – Over a group of trees and bushes, the United Launch Alliance Delta II Heavy rocket carrying NASA’s twin Gravity Recovery and Interior Laboratory (GRAIL) mission launches off Space Launch ... More

CAPE CANAVERAL, Fla. – Plumes of smoke surround of the United Launch Alliance Delta II Heavy rocket carrying NASA’s twin Gravity Recovery and Interior Laboratory (GRAIL) mission off Space Launch Complex 17B on Cape Canaveral Air Force Station In Florida. The spacecraft launched at 9:08:52 a.m. EDT Sept. 10. GRAIL-A will separate from the second stage of the rocket at about one hour, 21 minutes after liftoff, followed by GRAIL-B at 90 minutes after launch. The spacecraft are embarking on a three-month journey to reach the moon. GRAIL will fly twin spacecraft in tandem around the moon to precisely measure and map variations in the moon's gravitational field. The mission will provide the most accurate global gravity field to date for any planet, including Earth. This detailed information will reveal differences in the density of the moon's crust and mantle and will help answer fundamental questions about the moon's internal structure, thermal evolution, and history of collisions with asteroids. The aim is to map the moon's gravity field so completely that future moon vehicles can safely navigate anywhere on the moon’s surface. For more information, visit http://www.nasa.gov/grail. Photo credit: NASA/Sandra Joseph and Don Kight KSC-2011-6894

CAPE CANAVERAL, Fla. – Plumes of smoke surround of the United Launch A...

CAPE CANAVERAL, Fla. – Plumes of smoke surround of the United Launch Alliance Delta II Heavy rocket carrying NASA’s twin Gravity Recovery and Interior Laboratory (GRAIL) mission off Space Launch Complex 17B on ... More

CAPE CANAVERAL, Fla. – At ignition, flames and smoke from the engines begin liftoff of the United Launch Alliance Delta II Heavy rocket carrying NASA’s twin Gravity Recovery and Interior Laboratory (GRAIL) mission off Space Launch Complex 17B on Cape Canaveral Air Force Station in Florida. At left is the pad’s mobile service tower. The spacecraft launched at 9:08:52 a.m. EDT Sept. 10. GRAIL-A will separate from the second stage of the rocket at about one hour, 21 minutes after liftoff, followed by GRAIL-B at 90 minutes after launch. The spacecraft are embarking on a three-month journey to reach the moon. GRAIL will fly twin spacecraft in tandem around the moon to precisely measure and map variations in the moon's gravitational field. The mission will provide the most accurate global gravity field to date for any planet, including Earth. This detailed information will reveal differences in the density of the moon's crust and mantle and will help answer fundamental questions about the moon's internal structure, thermal evolution, and history of collisions with asteroids. The aim is to map the moon's gravity field so completely that future moon vehicles can safely navigate anywhere on the moon’s surface. For more information, visit http://www.nasa.gov/grail. Photo credit: NASA/Kenny Allen KSC-2011-6929

CAPE CANAVERAL, Fla. – At ignition, flames and smoke from the engines ...

CAPE CANAVERAL, Fla. – At ignition, flames and smoke from the engines begin liftoff of the United Launch Alliance Delta II Heavy rocket carrying NASA’s twin Gravity Recovery and Interior Laboratory (GRAIL) miss... More

CAPE CANAVERAL, Fla. – Fire and smoke light up the sky as a United Launch Alliance Delta II Heavy rocket propels NASA’s Gravity Recovery and Interior Laboratory (GRAIL) mission into space. Liftoff from Space Launch Complex 17B on Cape Canaveral Air Force Station in Florida was at 9:08:52 a.m. EDT Sept.10. GRAIL-A will separate from the second stage of the rocket at about one hour, 21 minutes after liftoff, followed by GRAIL-B at 90 minutes after launch. The spacecraft are embarking on a three-month journey to reach the moon. GRAIL will fly twin spacecraft in tandem around the moon to precisely measure and map variations in the moon's gravitational field. The mission will provide the most accurate global gravity field to date for any planet, including Earth. This detailed information will reveal differences in the density of the moon's crust and mantle and will help answer fundamental questions about the moon's internal structure, thermal evolution, and history of collisions with asteroids. The aim is to map the moon's gravity field so completely that future moon vehicles can safely navigate anywhere on the moon’s surface. For more information, visit http://www.nasa.gov/grail. Photo credit: NASA/Darrell McCall KSC-2011-6864

CAPE CANAVERAL, Fla. – Fire and smoke light up the sky as a United Lau...

CAPE CANAVERAL, Fla. – Fire and smoke light up the sky as a United Launch Alliance Delta II Heavy rocket propels NASA’s Gravity Recovery and Interior Laboratory (GRAIL) mission into space. Liftoff from Space La... More

CAPE CANAVERAL, Fla. – Plumes of smoke surround of the United Launch Alliance Delta II Heavy rocket carrying NASA’s twin Gravity Recovery and Interior Laboratory (GRAIL) mission off Space Launch Complex 17B on Cape Canaveral Air Force Station In Florida. The spacecraft launched at 9:08:52 a.m. EDT Sept. 10. GRAIL-A will separate from the second stage of the rocket at about one hour, 21 minutes after liftoff, followed by GRAIL-B at 90 minutes after launch. The spacecraft are embarking on a three-month journey to reach the moon. GRAIL will fly twin spacecraft in tandem around the moon to precisely measure and map variations in the moon's gravitational field. The mission will provide the most accurate global gravity field to date for any planet, including Earth. This detailed information will reveal differences in the density of the moon's crust and mantle and will help answer fundamental questions about the moon's internal structure, thermal evolution, and history of collisions with asteroids. The aim is to map the moon's gravity field so completely that future moon vehicles can safely navigate anywhere on the moon’s surface. For more information, visit http://www.nasa.gov/grail. Photo credit: NASA/Sandra Joseph and Don Kight KSC-2011-6899

CAPE CANAVERAL, Fla. – Plumes of smoke surround of the United Launch A...

CAPE CANAVERAL, Fla. – Plumes of smoke surround of the United Launch Alliance Delta II Heavy rocket carrying NASA’s twin Gravity Recovery and Interior Laboratory (GRAIL) mission off Space Launch Complex 17B on ... More

CAPE CANAVERAL, Fla. – Engine ignition begins liftoff of the United Launch Alliance Delta II Heavy rocket carrying NASA’s twin Gravity Recovery and Interior Laboratory (GRAIL) mission off Space Launch Complex 17B on Cape Canaveral Air Force Station in Florida. At right is the pad’s mobile service tower. The spacecraft launched at 9:08:52 a.m. EDT Sept. 10. GRAIL-A will separate from the second stage of the rocket at about one hour, 21 minutes after liftoff, followed by GRAIL-B at 90 minutes after launch. The spacecraft are embarking on a three-month journey to reach the moon. GRAIL will fly twin spacecraft in tandem around the moon to precisely measure and map variations in the moon's gravitational field. The mission will provide the most accurate global gravity field to date for any planet, including Earth. This detailed information will reveal differences in the density of the moon's crust and mantle and will help answer fundamental questions about the moon's internal structure, thermal evolution, and history of collisions with asteroids. The aim is to map the moon's gravity field so completely that future moon vehicles can safely navigate anywhere on the moon’s surface. For more information, visit http://www.nasa.gov/grail. Photo credit: NASA/Tom Farrar and Tony Gray KSC-2011-6900

CAPE CANAVERAL, Fla. – Engine ignition begins liftoff of the United La...

CAPE CANAVERAL, Fla. – Engine ignition begins liftoff of the United Launch Alliance Delta II Heavy rocket carrying NASA’s twin Gravity Recovery and Interior Laboratory (GRAIL) mission off Space Launch Complex 1... More

CAPE CANAVERAL, Fla. – Over a group of trees and bushes, the United Launch Alliance Delta II Heavy rocket carrying NASA’s twin Gravity Recovery and Interior Laboratory (GRAIL) mission launches off Space Launch Complex 17B on Cape Canaveral Air Force Station in Florida. At left is the pad’s mobile service tower. The spacecraft launched at 9:08:52 a.m. EDT Sept. 10. GRAIL-A will separate from the second stage of the rocket at about one hour, 21 minutes after liftoff, followed by GRAIL-B at 90 minutes after launch. The spacecraft are embarking on a three-month journey to reach the moon. GRAIL will fly twin spacecraft in tandem around the moon to precisely measure and map variations in the moon's gravitational field. The mission will provide the most accurate global gravity field to date for any planet, including Earth. This detailed information will reveal differences in the density of the moon's crust and mantle and will help answer fundamental questions about the moon's internal structure, thermal evolution, and history of collisions with asteroids. The aim is to map the moon's gravity field so completely that future moon vehicles can safely navigate anywhere on the moon’s surface. For more information, visit http://www.nasa.gov/grail. Photo credit: NASA/Kenny Allen KSC-2011-6927

CAPE CANAVERAL, Fla. – Over a group of trees and bushes, the United La...

CAPE CANAVERAL, Fla. – Over a group of trees and bushes, the United Launch Alliance Delta II Heavy rocket carrying NASA’s twin Gravity Recovery and Interior Laboratory (GRAIL) mission launches off Space Launch ... More

CAPE CANAVERAL, Fla. – At liftoff, plumes of smoke surround the United Launch Alliance Delta II Heavy rocket carrying NASA’s twin Gravity Recovery and Interior Laboratory (GRAIL) mission off Space Launch Complex 17B on Cape Canaveral Air Force Station in Florida. The spacecraft launched at 9:08:52 a.m. EDT Sept. 10. GRAIL-A will separate from the second stage of the rocket at about one hour, 21 minutes after liftoff, followed by GRAIL-B at 90 minutes after launch. The spacecraft are embarking on a three-month journey to reach the moon. GRAIL will fly twin spacecraft in tandem around the moon to precisely measure and map variations in the moon's gravitational field. The mission will provide the most accurate global gravity field to date for any planet, including Earth. This detailed information will reveal differences in the density of the moon's crust and mantle and will help answer fundamental questions about the moon's internal structure, thermal evolution, and history of collisions with asteroids. The aim is to map the moon's gravity field so completely that future moon vehicles can safely navigate anywhere on the moon’s surface. For more information, visit http://www.nasa.gov/grail. Photo credit: NASA/ Tony Gray and Tim Powers KSC-2011-6921

CAPE CANAVERAL, Fla. – At liftoff, plumes of smoke surround the United...

CAPE CANAVERAL, Fla. – At liftoff, plumes of smoke surround the United Launch Alliance Delta II Heavy rocket carrying NASA’s twin Gravity Recovery and Interior Laboratory (GRAIL) mission off Space Launch Comple... More

CAPE CANAVERAL, Fla. – Over a group of trees and bushes, the United Launch Alliance Delta II Heavy rocket carrying NASA’s twin Gravity Recovery and Interior Laboratory (GRAIL) mission launches off Space Launch Complex 17B on Cape Canaveral Air Force Station in Florida. The spacecraft launched at 9:08:52 a.m. EDT Sept. 10. GRAIL-A will separate from the second stage of the rocket at about one hour, 21 minutes after liftoff, followed by GRAIL-B at 90 minutes after launch. The spacecraft are embarking on a three-month journey to reach the moon. GRAIL will fly twin spacecraft in tandem around the moon to precisely measure and map variations in the moon's gravitational field. The mission will provide the most accurate global gravity field to date for any planet, including Earth. This detailed information will reveal differences in the density of the moon's crust and mantle and will help answer fundamental questions about the moon's internal structure, thermal evolution, and history of collisions with asteroids. The aim is to map the moon's gravity field so completely that future moon vehicles can safely navigate anywhere on the moon’s surface. For more information, visit http://www.nasa.gov/grail. Photo credit: NASA/George Roberts KSC-2011-6925

CAPE CANAVERAL, Fla. – Over a group of trees and bushes, the United La...

CAPE CANAVERAL, Fla. – Over a group of trees and bushes, the United Launch Alliance Delta II Heavy rocket carrying NASA’s twin Gravity Recovery and Interior Laboratory (GRAIL) mission launches off Space Launch ... More

CAPE CANAVERAL, Fla. – Flames and smoke from the engines surround the United Launch Alliance Delta II rocket at liftoff carrying NASA’s twin Gravity Recovery and Interior Laboratory (GRAIL) mission off Space Launch Complex 17B on Cape Canaveral Air Force Station in Florida. At right is the pad’s mobile service tower. The spacecraft launched at 9:08:52 a.m. EDT Sept. 10. GRAIL-A will separate from the second stage of the rocket at about one hour, 21 minutes after liftoff, followed by GRAIL-B at 90 minutes after launch. The spacecraft are embarking on a three-month journey to reach the moon. GRAIL will fly twin spacecraft in tandem around the moon to precisely measure and map variations in the moon's gravitational field. The mission will provide the most accurate global gravity field to date for any planet, including Earth. This detailed information will reveal differences in the density of the moon's crust and mantle and will help answer fundamental questions about the moon's internal structure, thermal evolution, and history of collisions with asteroids. The aim is to map the moon's gravity field so completely that future moon vehicles can safely navigate anywhere on the moon’s surface. For more information, visit http://www.nasa.gov/grail. Photo credit: NASA/Tom Farrar and Tony Gray KSC-2011-6903

CAPE CANAVERAL, Fla. – Flames and smoke from the engines surround the ...

CAPE CANAVERAL, Fla. – Flames and smoke from the engines surround the United Launch Alliance Delta II rocket at liftoff carrying NASA’s twin Gravity Recovery and Interior Laboratory (GRAIL) mission off Space La... More

CAPE CANAVERAL, Fla. – Under a blue sky, engine ignition begins liftoff of the United Launch Alliance Delta II Heavy rocket carrying NASA’s twin Gravity Recovery and Interior Laboratory (GRAIL) mission off Space Launch Complex 17B on Cape Canaveral Air Force Station in Florida. The spacecraft launched at 9:08:52 a.m. EDT Sept. 10. GRAIL-A will separate from the second stage of the rocket at about one hour, 21 minutes after liftoff, followed by GRAIL-B at 90 minutes after launch. The spacecraft are embarking on a three-month journey to reach the moon. GRAIL will fly twin spacecraft in tandem around the moon to precisely measure and map variations in the moon's gravitational field. The mission will provide the most accurate global gravity field to date for any planet, including Earth. This detailed information will reveal differences in the density of the moon's crust and mantle and will help answer fundamental questions about the moon's internal structure, thermal evolution, and history of collisions with asteroids. The aim is to map the moon's gravity field so completely that future moon vehicles can safely navigate anywhere on the moon’s surface. For more information, visit http://www.nasa.gov/grail. Photo credit: NASA/Sandra Joseph and Don Kight KSC-2011-6910

CAPE CANAVERAL, Fla. – Under a blue sky, engine ignition begins liftof...

CAPE CANAVERAL, Fla. – Under a blue sky, engine ignition begins liftoff of the United Launch Alliance Delta II Heavy rocket carrying NASA’s twin Gravity Recovery and Interior Laboratory (GRAIL) mission off Spac... More

CAPE CANAVERAL, Fla. – Plumes of smoke surround Space Launch Complex 17B on Cape Canaveral Air Force Station in Florida as a United Launch Alliance Delta II Heavy rocket lofts NASA’s Gravity Recovery and Interior Laboratory (GRAIL) mission into space. Liftoff was at 9:08:52 a.m. EDT Sept.10. GRAIL-A will separate from the second stage of the rocket at about one hour, 21 minutes after liftoff, followed by GRAIL-B at 90 minutes after launch. The spacecraft are embarking on a three-month journey to reach the moon. GRAIL will fly twin spacecraft in tandem around the moon to precisely measure and map variations in the moon's gravitational field. The mission will provide the most accurate global gravity field to date for any planet, including Earth. This detailed information will reveal differences in the density of the moon's crust and mantle and will help answer fundamental questions about the moon's internal structure, thermal evolution, and history of collisions with asteroids. The aim is to map the moon's gravity field so completely that future moon vehicles can safely navigate anywhere on the moon’s surface. For more information, visit http://www.nasa.gov/grail. Photo credit: NASA/Darrell McCall KSC-2011-6861

CAPE CANAVERAL, Fla. – Plumes of smoke surround Space Launch Complex 1...

CAPE CANAVERAL, Fla. – Plumes of smoke surround Space Launch Complex 17B on Cape Canaveral Air Force Station in Florida as a United Launch Alliance Delta II Heavy rocket lofts NASA’s Gravity Recovery and Interi... More

CAPE CANAVERAL, Fla. – At ignition, flames and smoke from the engines begin liftoff of the United Launch Alliance Delta II Heavy rocket carrying NASA’s twin Gravity Recovery and Interior Laboratory (GRAIL) mission off Space Launch Complex 17B on Cape Canaveral Air Force Station in Florida. The spacecraft launched at 9:08:52 a.m. EDT Sept. 10. GRAIL-A will separate from the second stage of the rocket at about one hour, 21 minutes after liftoff, followed by GRAIL-B at 90 minutes after launch. The spacecraft are embarking on a three-month journey to reach the moon. GRAIL will fly twin spacecraft in tandem around the moon to precisely measure and map variations in the moon's gravitational field. The mission will provide the most accurate global gravity field to date for any planet, including Earth. This detailed information will reveal differences in the density of the moon's crust and mantle and will help answer fundamental questions about the moon's internal structure, thermal evolution, and history of collisions with asteroids. The aim is to map the moon's gravity field so completely that future moon vehicles can safely navigate anywhere on the moon’s surface. For more information, visit http://www.nasa.gov/grail. Photo credit: NASA/Sandra Joseph and Don Kight KSC-2011-6897

CAPE CANAVERAL, Fla. – At ignition, flames and smoke from the engines ...

CAPE CANAVERAL, Fla. – At ignition, flames and smoke from the engines begin liftoff of the United Launch Alliance Delta II Heavy rocket carrying NASA’s twin Gravity Recovery and Interior Laboratory (GRAIL) miss... More

CAPE CANAVERAL, Fla. – Backdropped by a beautiful blue sky, the United Launch Alliance Delta II Heavy rocket propels NASA’s twin Gravity Recovery and Interior Laboratory (GRAIL) mission off Space Launch Complex 17B on Cape Canaveral Air Force Station in Florida. The spacecraft launched at 9:08:52 a.m. EDT Sept. 10. GRAIL-A will separate from the second stage of the rocket at about one hour, 21 minutes after liftoff, followed by GRAIL-B at 90 minutes after launch. The spacecraft are embarking on a three-month journey to reach the moon. GRAIL will fly twin spacecraft in tandem around the moon to precisely measure and map variations in the moon's gravitational field. The mission will provide the most accurate global gravity field to date for any planet, including Earth. This detailed information will reveal differences in the density of the moon's crust and mantle and will help answer fundamental questions about the moon's internal structure, thermal evolution, and history of collisions with asteroids. The aim is to map the moon's gravity field so completely that future moon vehicles can safely navigate anywhere on the moon’s surface. For more information, visit http://www.nasa.gov/grail. Photo credit: NASA/George Roberts KSC-2011-6926

CAPE CANAVERAL, Fla. – Backdropped by a beautiful blue sky, the United...

CAPE CANAVERAL, Fla. – Backdropped by a beautiful blue sky, the United Launch Alliance Delta II Heavy rocket propels NASA’s twin Gravity Recovery and Interior Laboratory (GRAIL) mission off Space Launch Complex... More

CAPE CANAVERAL, Fla. – At liftoff, plumes of smoke surround the United Launch Alliance Delta II Heavy rocket carrying NASA’s twin Gravity Recovery and Interior Laboratory (GRAIL) mission off Space Launch Complex 17B on Cape Canaveral Air Force Station in Florida. The spacecraft launched at 9:08:52 a.m. EDT Sept. 10. GRAIL-A will separate from the second stage of the rocket at about one hour, 21 minutes after liftoff, followed by GRAIL-B at 90 minutes after launch. The spacecraft are embarking on a three-month journey to reach the moon. GRAIL will fly twin spacecraft in tandem around the moon to precisely measure and map variations in the moon's gravitational field. The mission will provide the most accurate global gravity field to date for any planet, including Earth. This detailed information will reveal differences in the density of the moon's crust and mantle and will help answer fundamental questions about the moon's internal structure, thermal evolution, and history of collisions with asteroids. The aim is to map the moon's gravity field so completely that future moon vehicles can safely navigate anywhere on the moon’s surface. For more information, visit http://www.nasa.gov/grail. Photo credit: NASA/ Tony Gray and Tim Powers KSC-2011-6920

CAPE CANAVERAL, Fla. – At liftoff, plumes of smoke surround the United...

CAPE CANAVERAL, Fla. – At liftoff, plumes of smoke surround the United Launch Alliance Delta II Heavy rocket carrying NASA’s twin Gravity Recovery and Interior Laboratory (GRAIL) mission off Space Launch Comple... More

CAPE CANAVERAL, Fla. – At ignition, flames and smoke from the engines begin liftoff of the United Launch Alliance Delta II Heavy rocket carrying NASA’s twin Gravity Recovery and Interior Laboratory (GRAIL) mission off Space Launch Complex 17B on Cape Canaveral Air Force Station in Florida. The spacecraft launched at 9:08:52 a.m. EDT Sept. 10. GRAIL-A will separate from the second stage of the rocket at about one hour, 21 minutes after liftoff, followed by GRAIL-B at 90 minutes after launch. The spacecraft are embarking on a three-month journey to reach the moon. GRAIL will fly twin spacecraft in tandem around the moon to precisely measure and map variations in the moon's gravitational field. The mission will provide the most accurate global gravity field to date for any planet, including Earth. This detailed information will reveal differences in the density of the moon's crust and mantle and will help answer fundamental questions about the moon's internal structure, thermal evolution, and history of collisions with asteroids. The aim is to map the moon's gravity field so completely that future moon vehicles can safely navigate anywhere on the moon’s surface. For more information, visit http://www.nasa.gov/grail. Photo credit: NASA/Sandra Joseph and Don Kight KSC-2011-6892

CAPE CANAVERAL, Fla. – At ignition, flames and smoke from the engines ...

CAPE CANAVERAL, Fla. – At ignition, flames and smoke from the engines begin liftoff of the United Launch Alliance Delta II Heavy rocket carrying NASA’s twin Gravity Recovery and Interior Laboratory (GRAIL) miss... More

CAPE CANAVERAL, Fla. – Flames and smoke from the engines surround the United Launch Alliance Delta II rocket at liftoff carrying NASA’s twin Gravity Recovery and Interior Laboratory (GRAIL) mission off Space Launch Complex 17B on Cape Canaveral Air Force Station in Florida. The spacecraft launched at 9:08:52 a.m. EDT Sept. 10. GRAIL-A will separate from the second stage of the rocket at about one hour, 21 minutes after liftoff, followed by GRAIL-B at 90 minutes after launch. The spacecraft are embarking on a three-month journey to reach the moon. GRAIL will fly twin spacecraft in tandem around the moon to precisely measure and map variations in the moon's gravitational field. The mission will provide the most accurate global gravity field to date for any planet, including Earth. This detailed information will reveal differences in the density of the moon's crust and mantle and will help answer fundamental questions about the moon's internal structure, thermal evolution, and history of collisions with asteroids. The aim is to map the moon's gravity field so completely that future moon vehicles can safely navigate anywhere on the moon’s surface. For more information, visit http://www.nasa.gov/grail. Photo credit: NASA/Sandra Joseph and Don Kight KSC-2011-6898

CAPE CANAVERAL, Fla. – Flames and smoke from the engines surround the ...

CAPE CANAVERAL, Fla. – Flames and smoke from the engines surround the United Launch Alliance Delta II rocket at liftoff carrying NASA’s twin Gravity Recovery and Interior Laboratory (GRAIL) mission off Space La... More

CAPE CANAVERAL, Fla. – Overlooking the Central Florida coast, engine ignition begins liftoff of the United Launch Alliance Delta II Heavy rocket carrying NASA’s twin Gravity Recovery and Interior Laboratory (GRAIL) mission off Space Launch Complex 17B on Cape Canaveral Air Force Station. The spacecraft launched at 9:08:52 a.m. EDT Sept. 10. GRAIL-A will separate from the second stage of the rocket at about one hour, 21 minutes after liftoff, followed by GRAIL-B at 90 minutes after launch. The spacecraft are embarking on a three-month journey to reach the moon. GRAIL will fly twin spacecraft in tandem around the moon to precisely measure and map variations in the moon's gravitational field. The mission will provide the most accurate global gravity field to date for any planet, including Earth. This detailed information will reveal differences in the density of the moon's crust and mantle and will help answer fundamental questions about the moon's internal structure, thermal evolution, and history of collisions with asteroids. The aim is to map the moon's gravity field so completely that future moon vehicles can safely navigate anywhere on the moon’s surface. For more information, visit http://www.nasa.gov/grail. Photo credit: NASA/Sandra Joseph and Don Kight KSC-2011-6889

CAPE CANAVERAL, Fla. – Overlooking the Central Florida coast, engine i...

CAPE CANAVERAL, Fla. – Overlooking the Central Florida coast, engine ignition begins liftoff of the United Launch Alliance Delta II Heavy rocket carrying NASA’s twin Gravity Recovery and Interior Laboratory (GR... More

CAPE CANAVERAL, Fla. – At liftoff, plumes of smoke surround the United Launch Alliance Delta II Heavy rocket carrying NASA’s twin Gravity Recovery and Interior Laboratory (GRAIL) mission off Space Launch Complex 17B on Cape Canaveral Air Force Station in Florida. The spacecraft launched at 9:08:52 a.m. EDT Sept. 10. GRAIL-A will separate from the second stage of the rocket at about one hour, 21 minutes after liftoff, followed by GRAIL-B at 90 minutes after launch. The spacecraft are embarking on a three-month journey to reach the moon. GRAIL will fly twin spacecraft in tandem around the moon to precisely measure and map variations in the moon's gravitational field. The mission will provide the most accurate global gravity field to date for any planet, including Earth. This detailed information will reveal differences in the density of the moon's crust and mantle and will help answer fundamental questions about the moon's internal structure, thermal evolution, and history of collisions with asteroids. The aim is to map the moon's gravity field so completely that future moon vehicles can safely navigate anywhere on the moon’s surface. For more information, visit http://www.nasa.gov/grail. Photo credit: NASA/ Tony Gray and Tim Powers KSC-2011-6922

CAPE CANAVERAL, Fla. – At liftoff, plumes of smoke surround the United...

CAPE CANAVERAL, Fla. – At liftoff, plumes of smoke surround the United Launch Alliance Delta II Heavy rocket carrying NASA’s twin Gravity Recovery and Interior Laboratory (GRAIL) mission off Space Launch Comple... More

CAPE CANAVERAL, Fla. – Overlooking the Central Florida coast, engine ignition begins liftoff of the United Launch Alliance Delta II Heavy rocket carrying NASA’s twin Gravity Recovery and Interior Laboratory (GRAIL) mission off Space Launch Complex 17B on Cape Canaveral Air Force Station. The spacecraft launched at 9:08:52 a.m. EDT Sept. 10. GRAIL-A will separate from the second stage of the rocket at about one hour, 21 minutes after liftoff, followed by GRAIL-B at 90 minutes after launch. The spacecraft are embarking on a three-month journey to reach the moon. GRAIL will fly twin spacecraft in tandem around the moon to precisely measure and map variations in the moon's gravitational field. The mission will provide the most accurate global gravity field to date for any planet, including Earth. This detailed information will reveal differences in the density of the moon's crust and mantle and will help answer fundamental questions about the moon's internal structure, thermal evolution, and history of collisions with asteroids. The aim is to map the moon's gravity field so completely that future moon vehicles can safely navigate anywhere on the moon’s surface. For more information, visit http://www.nasa.gov/grail. Photo credit: NASA/Sandra Joseph and Don Kight KSC-2011-6896

CAPE CANAVERAL, Fla. – Overlooking the Central Florida coast, engine i...

CAPE CANAVERAL, Fla. – Overlooking the Central Florida coast, engine ignition begins liftoff of the United Launch Alliance Delta II Heavy rocket carrying NASA’s twin Gravity Recovery and Interior Laboratory (GR... More

Geology talk at Acadia - Public Domain image, National Parks Gallery

Geology talk at Acadia - Public Domain image, National Parks Gallery

Acadia National Park: Ranger Jennifer Anderson talks about the geology that makes Acadia National Park unique during a guided tour of Seawall Picnic Area in Acadia National Park Wednesday. Visitors were able to... More

Charles Joseph Travies de Villers - Encore une heure!! / One hour again!! / 12

Charles Joseph Travies de Villers - Encore une heure!! / One hour agai...

Galerie physionomique (Group title) 12e planche de "Galerie physionomique" Pas d'inscription au verso

Encore une heure !! / One hour again !! / N°12

Encore une heure !! / One hour again !! / N°12

Galerie physionomique (Group title) Planche n°12 de la suite de 31 planches intitulée Galerie physionomique, publiée dans le Charivari, lithographie, signée, datée Lettre - GALERIE PHYSIONOMIQUE. (...) N°.1. / ... More

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