The Bloop: The Ocean’s Loudest Mystery Sound (1997)
In 1997, NOAA’s underwater microphones picked up an ultra-low-frequency ‘bloop’ loud enough to be heard more than 5,000 km away. People suggested a sea monster. NOAA later said it was ice.
In 1997, NOAA’s underwater microphones picked up an ultra-low-frequency ‘bloop’ loud enough to be heard more than 5,000 km away. People suggested a sea monster. NOAA later said it was ice.