Walkabout the Galaxy

Author: Joshua Colwell, Adrienne Dove, and James Cooney

An irreverent and informative tour of the latest, greatest, and most interesting discoveries in astronomy.
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Language: en

Genres: Comedy, Natural Sciences, Science

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Little Plutino Has An Atmosphere and Making Sense of Saturn
Episode 423
Wednesday, 13 May, 2026

A Plutino, an object that shares Pluto's orbit but which is much smaller than Pluto, appears to have a very thin global atmosphere. We discuss the detection and how such a small body could hold onto even a thin atmosphere, as well as a new model that describes many of Saturn's peculiarities with a recent collision between its big moon Titan and a precursor to the sponge-y moon Hyperion. Join us for all this, space news, astronomy trivia, and much more.