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Alien Imposters: Planets with Oxygen Don’t Necessarily Have Life

20 Dec 2018, 17:00 UTC
Alien Imposters: Planets with Oxygen Don’t Necessarily Have Life
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In their search for life in solar systems near and far, researchers have often accepted the presence of oxygen in a planet’s atmosphere as the surest sign that life may be present there. A new Johns Hopkins study, however, recommends a reconsideration of that rule of thumb.

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