From a synchronized ballet of white-tip reef sharks to the moment a male cardinal fish releases a swarm of freshly-hatched babies from its mouth, the winning underwater photos of the Ocean Art ...

A sleeping giant of a volcano is stirring in its underwater bed. The volcano, tucked underneath a submerged peak called Axial Seamount, is the most active volcano in the Pacific Northwest. Seismic ...

Penguins can fly. Not in the sky, but in icy waters. Photographer Jill Crosby’s face was freezing as she watched penguins zip around near the Salisbury Plain in South Georgia (located about 800 ...

Rep. Tim Burchett (R-Tenn.) said Wednesday he believes aliens have underwater bases on Earth. “I just think travelin’ light years, I think it happens. I think it’s possible in the vastness ...

An aerospace engineer has just spent 120 days not in the air, nor in space—but underwater. On Friday, Rudiger Koch ended his 120th day in a capsule submerged in the Caribbean, setting an ...

A German aerospace engineer celebrated setting a world record Friday for the longest time living underwater without depressurization—120 days in a submerged capsule off the coast of Panama.

Imagine living underwater, not just for a few hours on a dive, but for days, weeks, or even months. One UK-based company is working on creating underwater habitats for long-term human sea exploration.

"They tell me something's moving at hundreds of miles an hour underwater... as large as a football field, underwater," the Tennessee congressman told former Republican congressman Matt Gaetz ...

Discover the underwater post box in Susami, Japan, a creative idea by Mr. Matsumoto that turned the town into a must-see destination for divers. US: Baseball Ichiro becomes 1st Asian elected to U ...

For as much as $250,000-per-seat, tourists could ride inside the company’s 22-foot-long submersible on a 2.5-mile journey to the UNESCO underwater cultural heritage site. Titan conducted ...