Milky Way may host 17 billion Earth sized planets
Astronomers using NASA's Kepler spacecraft have discovered that one in six stars hosts an Earth sized planet in a close orbit, suggesting there are at least 17 billion such planets in our galaxy.
According to a new analysis of Kepler data showed that about 17 per cent 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.
Posted by Phoenix Mathew
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