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Crater clusters on Mars:Shedding light on martian ejecta launch conditions
Cratering Mars Meteorites Impact processes
2015/12/25
We have identified two classes of crater clusters on Mars. One class is “small clusters” (crater diameter D ～ tens m, spread over few hundred m), fitting our earlier calculations for the breakup of we...
Launch of UN World Economic and Social Survey 2009: Promoting Development, Saving the Planet
UN World Economic Social Survey 2009 the Planet
2009/8/31
As negotiations for a new global agreement to address climate change enter the final stages before the Copenhagen Climate Change Conference this December, the United Nations is issuing a report on 1 S...
11-Apr-2007，NASA’s next major space observatory, the Gamma-ray Large Area Space Telescope (GLAST), is one step closer to unveiling the mysteries of the high-energy universe. Almost all the components ...
Ground Team Stays Busy on 10th Anniversary of NASA Mars Launch
10th Anniversary Mars Launch red planet
2006/12/4
2006-11-15，Mars Global Surveyor is the oldest of five NASA spacecraft currently active at the red planet, and has operated longer than any other spacecraft ever sent to Mars. Mars Global Surveyor was ...
Space Shuttle Discovery Set for December 7 Launch（图）
Space Shuttle complex power cooling systems
2006/12/4
November 30, 2006，In a unanimous recommendation by NASA management, the next Space Shuttle flight to the International Space Station (ISS) is set for December 7. Commander Mark Polansky and his six cr...