A mysterious crater on Pluto may not be the result of an ancient impact but rather the collapsed caldera of a massive icy supervolcano that erupted just a few million years ago. A Recent studies based ...
Valles Caldera National Preserve in the Jemez Mountains is worth driving across the country to see. It is the floor of a collapsed supervolcano that exploded over 1.2 million years ago. Seeing it from ...
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