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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Snowball Earth was Cold and Scary and the Milky Way Magnetic Field is a Mess
Episode 418
Wednesday, 18 February, 2026

The Earth spent some crazy amounts of time (tens of millions of years) completely frozen over. And not, in the grand scheme of things, all that long ago. New research shows the ocean was salty and super-cold. How did life survive? New techniques using radio observations reveal a complicated and twisty galactic magnetic field. Join us for an icy, winter olympics themed episode to find out all this and more.