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The Planets of Gliese 581
One of the most fertile grounds for finding Earth-like planets turns out to be a long-overlooked class of stars. M Stars, or red dwarfs, range from one half to one-twentieth the mass of our sun and make up 76% of all the stars in our galaxy.
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Cosmic Journeys:   The Planets of Gliese 581
One of the most fertile grounds for finding Earth-like planets turns out to be a long-overlooked class of stars. M Stars, or red dwarfs, range from one half to one-twentieth the mass of our sun and make up 76% of all the stars in our galaxy.
Aired: 5/2/11
Views: 1581
Network:  SpaceRip
 
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