Do You Recognise These Creepy Sounds?

Some of the creepiest sounds ever recorded aren't from horror films. They're real.

From mysterious noises from the deepest parts of the ocean to the eerie voices of people who died more than a century ago, the world is full of sounds stranger than anything we could dream up.

But what on Earth is making them?

In this Halloween special of The Rest Is Science, Professor Hannah Fry and Michael Stevens (Vsauce) listen to some of the world's most mysterious and unsettling recordings, attempting to identify their origins and uncover the surprising science behind them.

They travel back to 1860 to hear a voice that was never intended to be heard again, investigate a bizarre underwater noise that baffled scientists for a decade, and encounter a sound so strange that Hannah suspects it might have come from outer space.

Turn up the volume, put on your headphones, and see how many you can identify…before Hannah does.

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For more information about Cancer Research UK, their research, breakthroughs and how you can support them, visit https://cancerresearchuk.org/restisscience

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Video Producer: Adam Thornton + Oli Oakley + Jack Meek

Animator: Sam Benson

Video & Social: Bex Tyrrell

Assistant Producer: Lucy Lipscombe

Producer: Simona Rata

Senior Producer: Lauren Armstrong-Carter

Chief Digital Officer: Samuel Oakley

Exec Producer: Neil Fearn

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