This Week In Space | Universe Today: Rocket racing! :-)))

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Stephen Hawking warns us about aliens, the military launches a space shuttle, NASA helps keep an eye on oil slick off Louisiana, and the countdowns are on for Atlantis' final scheduled flight and Falcon 9's inaugural flight. . . . More: http://www.universetoday.com/2010/05/02/this-week-in-space/