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PBS Space Time

Season 2021 · Episode 5

Gravitational Wave Background Discovered?

0.019mFebruary 17, 2021

It was pretty impressive when LIGO detected gravitational waves from colliding black holes. Well we’ve just taken that to the next level with a galaxy-spanning gravitational wave detector that may have detected a foundational element of space itself - the gravitational wave background.

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Episodes

Episode 1What Happens During a Quantum Jump?
Episode 2Can We Break the Universe?
Episode 3Is Dark Matter Made of Particles?
Episode 4How Does Gravity Warp the Flow of Time?
Episode 5Gravitational Wave Background Discovered?
Episode 6Does Time Cause Gravity?
Episode 7How Does Gravity Affect Light?
Episode 8The NEW Crisis in Cosmology