Topic: Gliese 581d
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What makes a planet livable? Five things scientists look for.
Scientists have so far detected at least 550 planets outside the solar system – and another 2,000-plus await confirmation. But how to pick out the ones that may be Earth-like havens for life? Here's what one team looks for in assessing any planet's potential habitability and its similarity to Earth's properties.
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Exoplanet Gliese 581g tops list of potentially habitable worlds
Located 20 light years away and discovered in 2010, the exoplanet Gliese 581g is considered the best candidate for having an Earthlike environment.
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What makes a planet livable? Five things scientists look for.
Scientists have so far detected at least 550 planets outside the solar system – and another 2,000-plus await confirmation. But how to pick out the ones that may be Earth-like havens for life? Here's what one team looks for in assessing any planet's potential habitability and its similarity to Earth's properties.
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Potential 'water world' may be just another ice ball
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Planet hunters find an Earth-mass planet and a potential water world
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