Tuesday 12 January 2010 photo 4/4
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Anonymous
Tue 12 Jan 2010 20:29
Libra is home to the star Gliese 581, which has a planetary system consisting of at least 4 planets, including, Gliese 581 c, the first Earth-like extrasolar planet to be found within its parent star's habitable zone, Gliese 581 d, discovered in 2007 to be another Earth-like planet, and Gliese 581 e, the smallest mass exoplanet orbiting a normal star,[1] both of which are of significance for establishing the likelihood of life outside of the Solar System.[2]
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