<p>Amy Mainzer, the science adviser for "Don't Look Up," talks about the real-life astronomy behind the movie's fictional killer comet.&nbsp;</p>

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Fear the fungus in 'Unfamiliar Garden'

Cosmic Log's podcast from the place where science and technology intersect with science fiction and popular culture, hosted by science writer Alan Boyle and science-fiction writer Dominica Phetteplace. Become a supporter for less than (or more than) a dollar a month. Support this podcast: https://podcasters.spotify.com/pod/show/fiction-science/support