Video companion · Hidden Physics

The Real Pressure Waves Around a Black Hole

Name: The Real Pressure Waves Around a Black Hole
Uploaded: 2026-04-15
Duration: 1 min 31 s
Channel: Rick Wood
Description: Chandra found pressure waves around the Perseus Cluster’s central black hole and translated them for human ears.

Space can carry sound when it contains enough gas—and one cluster has been resonating for billions of years.

1:31Published April 15, 2026Hosted by Rick Wood

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What you’ll discover

Where sound can travel in space
What Chandra actually measured
Why NASA shifted the signal by 57 octaves

Further reading