In 1997, researchers recorded a powerful underwater sound in the Pacific Ocean unlike anything ever heard before. Nicknamed ...

Theories about the sound's origins included an undiscovered sea creature. By 2011, NOAA scientists concluded the sound was the cracking of an ice shelf during an icequake. In the summer of 1997, ...

How did the ocean produce the loudest sound ever recorded? In 1997, NOAA hydrophones picked up the infamous “Bloop,” a noise ...

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