14-September-2006, 10:37 PM
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Senior Member
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Join Date: Sep 2005
Posts: 3,410
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Astronomers Reveal First Alien I.D. Chart
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It is only a matter of time before astronomers find an Earth-sized planet orbiting a distant star. When they do, the first questions people will ask are: Is it habitable? And even more importantly, is there life present on it already? For clues to the answers, scientists are looking to their home planet, Earth.
Astronomers Lisa Kaltenegger of the Harvard-Smithsonian Center for Astrophysics (CfA) and Wesley Traub of NASA's Jet Propulsion Laboratory and CfA, propose using Earth's atmospheric history to understand other planets.
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`Irony` actually does mean `metal like`...
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