Astronomers Draw Ever Closer to Finding a Nearly Earth Object

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By Eliza Strickland
Apr 22, 2009 1:56 AMNov 5, 2019 9:00 PM
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Astronomers still haven't discovered Earth's twin orbiting another star out in the cosmos, but they're beginning to find worlds with a passing resemblance to our own. New studies of the red dwarf star Gliese 581 have revealed a small, rocky exoplanet with only twice the mass of Earth, and have also shed new light on a larger planet orbiting farther out, which researchers now say could have liquid water. Team member Stephane Udry believes that the larger planet could have

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