谁给我一篇英文UFO介绍啊

Earth-like planets raise prospects of extra-terrestial life: study
Agence France Press, Feb. 17, 2008 - 2/17/2008

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Planets resembling Earth can be found orbiting many sun-like stars in our galaxy, increasing the prospects of finding extraterrestial life on some of them, according to a study released Sunday.

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BOSTON, Massachusetts (AFP) - Planets resembling Earth can be found orbiting many sun-like stars in our galaxy, increasing the prospects of finding extraterrestial life on some of them, according to a study released Sunday.

University of Arizona astronomer Michael Meyer, working with NASA's Spitzer space telescope, said his research shows that between 20 percent and 60 percent of stars similar to our sun have conditions favorable for forming rocky planets like Earth.

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