topicmaker Veteran


Joined: 28 Feb 2006 Posts: 25817
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Posted: Thu Apr 17, 2014 4:49 pm Post subject: Scientists Find an 'Earth Twin' or Maybe a Cousin |
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It is a bit bigger and somewhat colder, but a planet circling a star 500 light-years away is otherwise the closest match of our home world discovered so far, astronomers announced on Thursday. The planet, known as Kepler 186f, named after NASA's Kepler planet-finding mission, which found it, has a diameter of 8,700 miles, 10 pe...read more |
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