Can The Crisis in Cosmology Be SOLVED With Cosmic Voids?

Can The Crisis in Cosmology Be SOLVED With Cosmic Voids?

From PBS Space Time by PBS

April 27, 2026 · 20 min

About this episode

The episode explores whether cosmic voids could explain the mysteries of dark energy and the expansion rate of the universe.

Check out the Space Time Merch Store https://www.pbsspacetime.com/shop Sign Up on Patreon to get access to the Space Time Discord! https://www.patreon.com/pbsspacetime Two of the greatest mysteries in cosmology are the nature of dark energy and the apparent conflict in our measurements of the expansion rate of the early versus the modern universe that even dark energy can’t account for. Could both of these be explained by looking to a part of the universe that we’ve largely ignored so far? Could cosmic voids be driving the universe? Episodes Referenced: The Evolution of the Modern Milky Way Galaxy: https://www.youtube.com/watch?v=e3jGWXeBtPo&ab_channel=PBSSpaceTime Dr. Beck: https://www.youtube.com/watch?v=HlNSvrYygRc&t=1s&ab_channel=Dr.Becky Dr. Becky: https://youtu.be/-kTe0xRAU1w?feature=shared Dark Energy Playlist: https://www.youtube.com/watch?v=-4PayaEgEZc&list=PLsPUh22kYmNAv1_8MA9-USkY6f2lfr1hb&ab_channel=PBSSpaceTime 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…

People in this episode

Host: Matt O'Dowd

Topics covered

  • cosmology
  • dark energy
  • cosmic voids
  • universe expansion
  • astronomy

Keywords

  • cosmic voids
  • dark energy
  • universe expansion
  • cosmology
  • astronomy

Mentioned in this episode

Organizations: PBS, Space Time Merch Store, Patreon

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