Things that Blow. And Clocks.

In another wide-ranging episode, we discuss how atmospheric and oceanic chemistry changes wiped out most life on Earth 250 million years ago, the best evidence yet for a third type of supernova, and the importance of timekeeping for astronomy and space missions. We also have historical clock trivia and a lot of space news to share.

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This episode is 48 minutes long.

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This episode was published on July 7, 2021.

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