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The Aftermath of Cosmic Collisions with Prof. Geriant Lewis (446)

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Manage episode 510938612 series 1288021
Content provided by Karl Kruszelnicki and Dr Karl Kruszelnicki. All podcast content including episodes, graphics, and podcast descriptions are uploaded and provided directly by Karl Kruszelnicki and Dr Karl Kruszelnicki or their podcast platform partner. If you believe someone is using your copyrighted work without your permission, you can follow the process outlined here https://podcastplayer.com/legal.

In this episode, friend of the show Geriant Lewis, Professor of Astrophysics at the Sydney Institute for Astronomy within the University of Sydney, joins us to unpack a fascinating New Scientist article theorising on how a strange line of dwarf galaxies may have formed. We explore how high-speed collisions between dwarf galaxies can scatter gas and stars across space, sometimes giving rise to entirely new tidal galaxies. Geraint explains the latest thinking on where these dwarf galaxies come from, what makes a galaxy “relaxed” or “unrelated,” and how these cosmic smash-ups might even shed light on one of the biggest mysteries in physics: the true nature of dark matter. www.geraintflewis.com/ Linkedin: Geriant Lewis Bluesky: cosmic_horizons

  continue reading

447 episodes

Artwork
iconShare
 
Manage episode 510938612 series 1288021
Content provided by Karl Kruszelnicki and Dr Karl Kruszelnicki. All podcast content including episodes, graphics, and podcast descriptions are uploaded and provided directly by Karl Kruszelnicki and Dr Karl Kruszelnicki or their podcast platform partner. If you believe someone is using your copyrighted work without your permission, you can follow the process outlined here https://podcastplayer.com/legal.

In this episode, friend of the show Geriant Lewis, Professor of Astrophysics at the Sydney Institute for Astronomy within the University of Sydney, joins us to unpack a fascinating New Scientist article theorising on how a strange line of dwarf galaxies may have formed. We explore how high-speed collisions between dwarf galaxies can scatter gas and stars across space, sometimes giving rise to entirely new tidal galaxies. Geraint explains the latest thinking on where these dwarf galaxies come from, what makes a galaxy “relaxed” or “unrelated,” and how these cosmic smash-ups might even shed light on one of the biggest mysteries in physics: the true nature of dark matter. www.geraintflewis.com/ Linkedin: Geriant Lewis Bluesky: cosmic_horizons

  continue reading

447 episodes

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