Solar Systems Like Ours May Be Common

Berkeley CA (SPX) Oct 29, 2010 Nearly one in four stars like the Sun could have Earth-size planets, according to a University of California, Berkeley, study of nearby solar-mass stars. UC Berkeley astronomers Andrew Howard and Geoffrey Marcy chose 166 G and K stars within 80 light-years of Earth and observed them with the powerful Keck telescope for five years in order to determine the number, mass and orbital distance


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