Three Tiny Exoplanets Suggest Solar System Not So Special

Adding to its already long roster of firsts , NASA's Kepler spacecraft has found the three smallest extrasolar planets ever detected — all of them smaller than Earth, and the most diminutive no larger than Mars. The newly discovered trio forms a miniature planetary system orbiting a cool, dim red dwarf star called KOI-961. [More]

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Three Tiny Exoplanets Suggest Solar System Not So Special