It was the loudest sound ever recorded underwater, and its audio profile seemed to match an animal call. What as the Bloop and could an unidentified creature have made it? The ocean, so dark and ...

In July 1982, some researchers from New Zealand plunged into the depths of the Southern Ocean to map out its soundscape in a first-of-its-kind project. At some point during their voyage, their ...

In 1977, researchers at Ohio State picked up this narrow-band radio signal emanating from somewhere beyond the constellation Sagittarius. It was exactly the kind of signal you’d expect from an ...