Extrasolar planets coming into focus
The discovery of a planet orbiting a dim dwarf star about 20 light-years from Earth has encouraged astronomers in their hunt for habitable, and maybe even inhabited, worlds elsewhere in the galaxy (SN: 10/23/10, p. 5). Though some researchers question the finding (SN: 11/6/10, p. 14), astronomers suspect that dozens of potentially habitable worlds will be discovered as the number of known exoplanets continues to climb.
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