Supernovas and Mass Extinctions

from Walkabout the Galaxy · host Josh Colwell, Addie Dove, Audrey Martin

A survey of nearby stars establishes the rate of supernovas in our general neighborhood. Evidence indicates we had nearby stellar explosions at the times of two mass extinctions. Those supernovas may have decimated the ozone layer and contributed to extinctions and climate changes. Plus, we recorded on April 1 and take a look at silly April 1 science papers, and we get tilted with our trivia and space news. Join us, won't you?

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This episode is 49 minutes long.

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This episode was published on April 2, 2025.

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