In 1997, underwater sensors detected an extremely powerful sound across thousands of miles of the South Pacific. Its rising ...
In the summer of 1997, scientists recorded a strange, loud noise originating from an area west of Chile's southern coast. They dubbed it "the bloop." While searching for underwater volcanoes, ...
In 1997, NOAA researchers recorded a mysterious ultra-low-frequency noise so powerful it registered on sensors thousands of miles apart.
Scientists recorded a mysterious sound that crossed the Pacific Ocean. Here’s what this ocean signal really was and how it was finally fully explained.