1 - A Call from the Deep - podcast episode cover

1 - A Call from the Deep

Apr 25, 201720 minSeason 1Ep. 1
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Episode description

In 1997, ocean researchers listening for the sound of underwater volcanoes accidentally recorded something they had never heard before. The noise, which they dubbed the “bloop,” was the loudest sound ever recorded under the sea, and it was an unexplained mystery for nearly 20 years.

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