Add Yahoo as a preferred source to see more of our stories on Google. Could the source of a mysterious "bloop" sound be an unknown sea creature? In 1997, the U.S. National Oceanic and Atmospheric ...

Nearly 30 years after it was first recorded, people are still arguing about a single sound from the deep ocean. The “Bloop,” a strange, powerful underwater noise picked up in 1997, has been folded ...

The ocean covers more than 70% of Earth’s surface, yet humans have explored only 5% of its vast depths. This makes our planet’s waters the ultimate frontier — a realm where bizarre creatures lurk in ...