David Grinspoon

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    It’s Time to Take the Gaia Hypothesis Seriously

    Can a planet be alive? Lynn Margulis, a giant of late 20th-century biology, who had an incandescent intellect that veered toward the unorthodox, thought so. She and chemist James Lovelock together theorized that life must be a planet-altering phenomenon and the distinction between the “living” and “nonliving” parts of Earth is not as clear-cut as […]

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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.

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    The Romantic Venus We Never Knew

    Venus used to be as fit for life as Earth.

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    An Astrobiologist Asks a Sci-fi Novelist How to Survive the Anthropocene

    Kim Stanley Robinson imagines our future.