When the Bloop was first reported by the National Oceanic and Atmospheric Administration, the media began to speculate that it was caused by a giant undersea creature. In 1997, the Bloop was picked up ...

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How did the ocean produce the loudest sound ever recorded? In 1997, NOAA hydrophones picked up the infamous “Bloop,” a noise so powerful it was heard across the Pacific. This video explores the ...

In 1997, the Bloop was heard on hydrophones across the Pacific. It was a loud, ultra-low frequency sound that was heard at listening stations underwater over 5,000km apart, and one of many mysterious ...

In 1997, the National Oceanic and Atmospheric Administration discovered an unusual, ultra-low-frequency sound emanating from a point off the southern coast of Chile. It was the loudest unidentified ...