PBS Space Time

Supervoids vs Colliding Universes! (2017x20)

Air date: Jun 07, 2017

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?