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2013/01/09

At Least One in Six Stars Has an Earth-sized Planet

At Least One in Six Stars Has an Earth-sized Planet: Long Beach CA (SPX) Jan 09, 2013



The quest for a twin Earth is heating up. Using NASA's Kepler spacecraft, astronomers are beginning to find Earth-sized planets orbiting distant stars. A new analysis of Kepler data shows that about 17 percent of stars have an Earth-sized planet in an orbit closer than Mercury. Since the Milky Way has about 100 billion stars, there are at least 17 billion Earth-sized worlds out there.

Fran

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