It is too big for a whale and one theory is that it is a deep sea monster, possibly a many-tentacled giant squid. In 1997, Bloop was detected by U.S. Navy "spy" sensors 3,000 miles apart that had ...

airguns), ice (sea ice, iceberg groundings), and animals (cetaceans, fish)." Anything else is usually just some kind of electronic interference with the signal. It's easy to see why the Bloop was ...