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February 19, 2025 Link Blog

From 900 miles away, the US government recorded audio of the Titan sub implosion

Absolutely insane technology started in the cold war.

The implosion took milliseconds, but its echoes lasted far longer.

Back in the 1960s, ’70s, and ’80s, this kind of sonic technology was deeply important to the military, which used the Sound Surveillance System (SOSUS) to track things like Soviet submarine movements. (Think of Hunt for Red October spy games here.) Using underwater beamforming and triangulation, the system could identify submarines many hundreds or even thousands of miles away. The SOSUS mission was declassified in 1991.

By way of ArsTechnica

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