Why Time Flows Differently Between Galaxies

Why Time Flows Differently Between Galaxies

From PBS Space Time by PBS

May 9, 2026 · 21 min

About this episode

The episode discusses how time flows differently between galaxies and the implications of dark energy on the universe's expansion.

Thanks to Radiacode for sponsoring this video. Use the promo code "PBS" to get an exclusive 10% discount at: https://103.radiacode.com/PBS The universe is expanding and that expansion is accelerating under the power of dark energy and eventually all matter and energy will be dispersed over such unthinkable distances that nothing can stop space from blowing up infinitely. Unless of course cosmologists blundered and dark energy doesn't even exist. Then it's back to the drawing board. Sign Up on Patreon to get access to the Space Time Discord! https://www.patreon.com/pbsspacetime Check out the Space Time Merch Store https://www.pbsspacetime.com/shop PBS Member Stations rely on viewers like you. To support your local station, go to:http://to.pbs.org/DonateSPACE Sign up for the mailing list to get episode notifications and hear special announcements! https://mailchi.mp/1a6eb8f2717d/spacetime Search the Entire Space Time Library Here: https://search.pbsspacetime.com/ Hosted by Matt O'Dowd Written by Matt O'Dowd Post Production by Leonardo Scholzer, Yago Ballarini & Stephanie Faria Directed by Andrew Kornhaber Associate Producer: Bahar Gholipour Executive Producer: Andrew Kornhaber…

People in this episode

Host: Matt O'Dowd

Topics covered

  • time flow
  • galaxies
  • dark energy
  • cosmology
  • universe expansion

Keywords

  • time flow
  • galaxies
  • dark energy
  • cosmology
  • universe expansion
  • PBS Space Time
  • Radiacode

Sponsors

Radiacode

Mentioned in this episode

Organizations: PBS, Kornhaber Brown

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