NASA Verdict: Most Exoplanets Are Not Habitable
October 23, 2018
Superflares from the majority of stars would likely sterilize any planet in its "habitable zone."
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Habitability Requires the Right Kind of Star
August 19, 2017
This is a continuation of my discussion on the requirements to allow life to exist on a planet elsewhere in the universe.
Doomed Worlds: Planets Seen Disrupting, Not Forming
May 23, 2012
Much as astrobiologists would like to see the birth of a new planet, the ones we observe seem to be dying, not being born.