Kepler Discovers Solar System's Ancient 'Twin'

January 27, 2015 4:35 PM

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Astronomers have found a star system that bears striking resemblance to our inner solar system. It’s a sun-like star that plays host to a system of five small exoplanets — from the size of Mercury to the size of Venus.

But there’s something very alien about this compact ‘solar system’; it formed when the universe was only 20 percent the age it is now, making making it the most ancient star system playing host to terrestrial sized worlds discovered to date.

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