Nasa

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This July 20, 1969, photo from NASA shows Apollo 11 astronaut Neil Armstrong on the lunar surface. (AP Photo/NASA, Buzz Aldrin)

** FILE ** This July 20, 1969, file photo provided by NASA shows Neil Armstrong. The family of Neil Armstrong, the first man to walk on the moon, says he died Saturday, Aug. 25, 2012, at age 82. (AP Photo/NASA)

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This image released on Friday, Aug. 17, 2012, shows bedrock that was exposed after Curiosity's rocket stage fired its engines and blew away soil from the Martian surface. (AP Photo/NASA)

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This image provided by NASA on Aug. 9, 2012, shows the first 360-degree color panorama taken on Mars by NASA's Curiosity rover. The panorama was stitched together using thumbnail images taken by the rover's mast camera. Curiosity landed in Gale Crater on Mars four days earlier to begin a two-year mission. (Associated Press/NASA)

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Michael Watkins, MSL mission manager at NASA's Jet Propulsion Laboratory, answers questions Aug. 9, 2012, during a news conference on Curiosity Mars Rover at the laboratory in Pasadena, Calif. (Associated Press)

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This image released by NASA on Wednesday, Aug. 8, 2012, and taken by cameras aboard the Curiosity rover shows the Martian horizon. (AP Photo/NASA)

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This image released on Aug. 7, 2012, by NASA shows the first color view of the north wall and rim of Gale Crater where NASA's rover Curiosity landed two days prior. The picture was taken by the rover's camera at the end of its stowed robotic arm and appears fuzzy because of dust on the camera's cover. (Associated Press/NASA)

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Brothers Riccardo (left), 16, and Ruggero Amaduzzi, 19, wait their turn to control a large panoramic interactive digital map of the surface of Mars at the Smithsonian National Air and Space Museum in Washington, D.C., on Monday during a NASA press conference streamed live on the landing of Curiosity. (Andrew Harnik/The Washington Times)

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Visitors to the Smithsonian National Air and Space Museum on Monday watch a NASA press conference on Curiosity. The nearly one-ton probe completed its eight-month journey to the Red Planet, plummeting to the surface with the help of a parachute during what’s widely been referred to as “seven minutes of terror.” (Andrew Harnik/The Washington Times)

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Matt Warfield of Hanover, Pa., and his son Brandon, 8, watch a live NASA press conference streamed live on the landing of Curiosity, which landed on the surface of Mars early Monday morning along with other visitors to the Smithsonian’s National Air and Space Museum, Washington, D.C., Monday, August 6, 2012. (Andrew Harnik/The Washington Times)

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This photo from Aug. 5, 2012, made available by NASA, shows the Curiosity rover (bottom) and its parachute descending to the surface from the vantage point of the Mars Reconnaissance Orbiter. (Associated Press)