Alien Ocean Planets –“Could Stay in the ‘Sweet Spot’ for Life Much Longer than Previously Thought”

 

“How much time a planet has is basically dependent on carbon dioxide and how it’s partitioned between the ocean, atmosphere and rocks in its early years,” said Edwin Kite, at the University of Chicago . “It does seem there is a way to keep a planet habitable long-term without the geochemical cycling we see on Earth.”

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