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Super Planet
Featured on June 27, 2019
An artist's concept depicts one scenario for the surface of Barnard's Star b, a planet orbiting one of our closest stellar neighbors. The planet is a "super-Earth," about three times Earth's mass, and the second-closest known exoplanet, at a distance of just six light-years. The planet probably is rocky, like Earth, with stronger surface gravity. [ESO/M. Kornmesser]
