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David Grinspoon

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    Why Most Planets Will Either Be Lush or Dead

    The Gaia hypothesis implies that once alien life takes hold, it will flourish.

  • Explore

    Why Most Planets Will Either Be Lush or Dead

    The Gaia hypothesis implies that once alien life takes hold, it will flourish.

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    The Romantic Venus We Never Knew

    Venus used to be as fit for life as Earth.