Trondheim, Norway (SPX) Jan 17, 2023

The more-than 1.2 million km of fibre-optic cables that criss-cross the planet carry the world’s phone calls, internet signals and data. But this summer, researchers published the eerie sounds of blue and fin whales detected by a fibre-optic cable on the west coast of Svalbard – a first.

Now the researchers want to eavesdrop on an even larger beast – the Earth itself.

Combining the w
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