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So in 1994 a small unmanned orbiter Clementine 于是柯蕾曼堤号无人太空船 was sent back to the moon, 在1994年再度前往月球 the first spacecraft to make the journey in more than 20 years. 这是20多年来首度展开这趟旅程的太空

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Scientists Deliberate Cleaning Space Junk WASHINGTON Everything that we launch into an orbit around the earth eventually becomes space debris. Scientists say the increasing number of unusable objects circling our planet is threatening functioning sat

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Six, five, four, three, two, one, zero India launched its first mission to the moon on Wednesday, rocketing the Chandrayaan-1 into the dawn sky for a 2-year mission to redraw maps of the lunar surface. Dear colleagues and friends, its a historic mom

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January 1991, an F-15 pilot on combat-air patrol sweeps the skies of Iraq. Sheridan, I'm Captain Medrimans, Captain in the 27th fighter squadron, flying in F-15 over Iraq. Today's been a mixed sweep, we started from the central, swept up for Bagdad,

7 Astronauts Killed as Space Shuttle Columbia Breaks Up on R

Broadcast: Feb 01, 2003 The U.S. Space Shuttle Columbia broke apart in mid-air Saturday minutes before it was to return to Earth. The U.S. space agency, 1) NASA, says none of the seven astronauts aboa

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Iron Dome defense system uses cameras and radar to track incoming rockets and can shoot them down within seconds of their launch. The system was developed by Rafael, the Israel Military Industries, at a cost of $200 million. Robert Berger | Jerusalem

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The Terminal High Altitude Area Defense or THAAD is a missile defense system. It uses missile to stop missiles. And the U.S. has deployed the first components of a THAAD system to South Korea. Why? Because North Korea, which is a rival of both the So

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Mapping Mountain Range Found Under Antarctic Ice Its late afternoon at the Lamont-Doherty Earth Observatory, where Robin Bell is at work analyzing various images of glaciers and plotting her next expedition to the frozen southern pole. She takes a br

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By Cindy Saine Capitol Hill 24 September 2009 Several U.S. senators have blasted President Barack Obama's decision to change U.S. missile defense policy in Europe, accusing the president of abandoning U.S. allies there. Senior Pentagon officials and

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By Meredith Buel Washington 02 October 2007 The Pentagon says a recent successful test of the nation's missile defense system could boost support for the controversial project, which is designed to protect America from missiles fired by countries suc

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Every year satellites are damaged or destroyed by objects orbiting the Earth's atmosphere. An Australian company is now using the latest laser technology to track these objects in order to reduce cosmic damage. Li Dong has the details. Even in space,

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Six, five, four, three, two, one, zero India launched its first mission to the moon on Wednesday, rocketing the Chandrayaan-1 into the dawn sky for a 2-year mission to redraw maps of the lunar surface. Dear colleagues and friends, its a historic mome

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The rule is what goes up must come down, but the trouble is nobody knows exactly where the six-ton NASA satellite will crash land. This white blob is the UARS probe as it spins out of control during its descent, the footage was taken by an astronomer

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The United States and Russia continue sparring over a Central European missile defense system, as Secretary of State Condoleezza Rice says America is committed to protecting its allies from a possible Iranian missile attack, and her Russian counterp

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