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Oct 29, 2026 17 min

Supervoids vs Colliding Universes!

from PBS Space Time Hosted by PBS

Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/DonateSPACEUploaded 07-06-17Could the mysterious Cold Spot found in the CMB be the result of a collision with a bubble universe? Try 23andMe at http://23andme.com/spacetime____________________________________________________[CORRECTION: The calculated ISW cooling from cold spot observed voids is 0.000032 Kelvin not 0.032 K as is listed on screen, the actual cold spot temperature differential is 0.000150 Kelvin not 0.15 K, and the actual ISW cooling from the control region is 0.000014 Kelvin not 0.014 K. The actual control region temperature differential is 0.000015 Kelvin not 0.015K. Thanks to Chris Morong for catching this discrepancy!]You can further support us on Patreon at https://www.patreon.com/pbsspacetimeGet your own Space Time t­shirt at http://bit.ly/1QlzoBiTweet at us! @pbsspacetimeFacebook: facebook.com/pbsspacetimeEmail us! pbsspacetime [at] gmail [dot] comComment on Reddit: http://www.reddit.com/r/pbsspacetimeHelp translate our videos! https://www.youtube.com/timedtext_cs_panel?tab=2&c=UC7_gcs09iThXybpVgjHZ_7gPrevious Episode:The Fate of the First Starshttps://www.youtube.com/watch?v=4pSUtWBiuB4Space Time Journal Club examines Evidence Against a Supervoid Causing the CMB Cold Spothttps://arxiv.org/abs/1704.03814 If you study a map of the Cosmic Microwave Background, or CMB, you may notice a large, deep blue splotch on the lower right. This area, creatively named the Cold Spot. Is this feature a statistical fluke, the signature of vast supervoids, or even the imprint of another universe?

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Supervoids vs Colliding Universes!

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