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Tuesday, January 8, 2013

Kepler telescope: Earth-sized planets 'number 17bn'

BBC News - Kepler telescope: Earth-sized planets 'number 17bn': "Astronomers say that one in six stars hosts an Earth-sized planet in a close orbit - suggesting a total of 17 billion such planets in our galaxy."

Visualisation of different types of planets in Milky Way, by Harvard-Smithsonian Center for Astrophysics
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