Some things lethal to humans can also serve as the basis for habitable conditions.
The search goes on for alien worlds orbiting nearby stars capable of supporting life as we know it, but scientists at the Southwest Research Institute (and others) have found that younger rocky exoplanets are the most likely candidates for habitable worlds beyond our solar system, according to a study published in Astrophysical Journal Letters.
And the reason, perhaps ironically, has to do with the presence of dangerous materials. Ones that are more abundant on young rocky worlds, than old ones.
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