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Walkabout the Galaxy

Walkabout the Galaxy

De : Joshua Colwell Adrienne Dove and James Cooney
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The accidentally educational astronomy podcast, Walkabout the Galaxy provides an entertaining and easy-to-understand look at the latest fascinating news and discoveries in astronomy and space science, with a dash of trivia and rocket news.Joshua Colwell Nature et écologie Science
Épisodes
  • Little Plutino Has An Atmosphere and Making Sense of Saturn
    May 13 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.

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    47 min
  • Superkilonova and Artemis II Recap
    Apr 28 2026

    Gravitational waves and light combine to reveal what is suspected to be a superkilonova which is much cooler than the name suggests. Cool in the cool way, not the temperature way. Learn about splitting neutron stars and, in our Artemis II recap, we revisit the highs (awesome mission, great astronauts) and lows (broken space toilet) of the mission that took people a record distance from the Earth, and what's next. Plus, trivia, stumper, fake sponsor, and all the nuttiness you've come to love and miss from the astroquarks. We're back!

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    45 min
  • A Whisper of a Hint of Primordial Black Holes plus Earth BLOBs
    Mar 18 2026

    Gravitational Wave observatory LIGO has seen a signature that looks like the merger of primordial (pre-stellar, big bang (not big band!) era) black holes. If confirmed with future observations, this would tell us a lot about the early universe and potentially shed light on dark matter. Finally! Plus, closer to home, the BLOBs in the Earth's mantle help us untangle the complicated past of our magnetic field.

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    41 min
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