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What If The Cosmological Constant Is NOT Constant?

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October 10, 2024

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We know that the universe is getting bigger. And we know that the speed that the universe is getting bigger is also getting bigger. The standard assumption is that the acceleration rate is itself constant, which will surely result in ultimate heat death. But a recent survey of primordial sound waves frozen into the way galaxies are sprinkled through the universe reveals that this fate is now in question.

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Hosted by Matt O'Dowd

Written by Richard Dyer & Matt O'Dowd

Post Production by Leonardo Scholzer, Yago Ballarini & Stephanie Faria

Directed by Andrew Kornhaber

Associate Producer: Bahar Gholipour

Executive Producer: Andrew Kornhaber

Executive in Charge for PBS: Maribel Lopez

Director of Programming for PBS: Gabrielle Ewing

Assistant Director of Programming for PBS: John Campbell

Special Thanks: Adam Schwartz & Kurt Ritta

Spacetime is a production of Kornhaber Brown for PBS Digital Studios.

This program is produced by Kornhaber Brown, which is solely responsible for its content.

© 2024 PBS. All rights reserved.

End Credits Music by J.R.S. Schattenberg

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