Two Dozen Exoplanets That Might be More Habitable Than Earth

Dirk Schulze-Makuch: René Heller from the Max-Planck Institute, Ed Guinan from Villanova University and I searched through a database of more than 4,000 planets outside our Solar System, looking for candidates that might be “superhabitable” — meaning more habitable than Earth. We came up with a shortlist of 24 MVPs (Most Valuable Planets) that may fall into that category, and have published the results in the journal Astrobiology. Could there really be a planet more habitable than our own? We think so. Earth’s amount of biomass and biodiversity has changed during the eons, and so has its degree of habitability.

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