Scientists have found a ghost ocean hidden under the Atlantic. They do not know what it might mean if this ocean overflows ...

Pisces III plunged 1,601 feet to the ocean floor after a tow line snagged, wrenched open a hatch, and flooded the aft sphere with a ton of seawater. The sub hit bottom upside-down, leaving two men ...

A giant asteroid impact crater, sitting 300 meters beneath the Atlantic Ocean floor, has been confirmed as the result of a ...

The 500-acre island can be reached by foot or car when the tide is out, allowing people to walk or drive across the ocean floor.