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 ...

In 1997, NOAA researchers recorded a mysterious ultra-low-frequency noise so powerful it registered on sensors thousands of miles apart.

Add Yahoo as a preferred source to see more of our stories on Google. Less than 30 percent of the ocean seafloor has been mapped. It’s often said that we know more about the moon, than we do about the ...

Is it a fish? Is it a sea monster? Is it Cthulhu? In 1997, while using underwater microphones to monitor volcanic activity in the depths of the southern Pacific Ocean, researchers with NOAA's Pacific ...

Less than 30 percent of the ocean seafloor has been mapped. It’s often said that we know more about the moon, than we do about the ocean, due to statistics like that. But, in fact, that popular saying ...