The world’s longest underwater cave system now stretches an astonishing 524 Kilometers, a hidden labyrinth that, in raw ...

"Please allow us some time to come to terms with his loss, as up until now we have been focused on the recovery,” his co-diver, Andy Pitkin, wrote in a statement Brett B Hemphill Facebook ...

A cave diver known for his record-breaking dives and contributions to scientific research has died during an underwater expedition. Divers recovered the body of Brett Hemphill, the 56-year-old ...

Beneath the idyllic resort towns of Mexico's Yucatan Peninsula, daring explorers have uncovered a hidden world of grand chambers and twisting tunnels. The Ox Bel Ha, Mayan for 'Three Paths of Water', ...

Deep/Underwater Cave Environments: Comments by William Stone at the First NASA Risk and Exploration Symposium By SpaceRef Editor March 1, 2007 Filed under exploration, Exploration Initiative, NASA HQ, ...

Correction: A previous version of this article referred to the non-profit organization Karst Underwater Research as "Karst Underground Research" in one instance. This has been corrected. A group of ...

(NASHVILLE, Tenn.) — A highly experienced British diver who went missing as he explored an underwater cave east of Nashville, Tennessee has been rescued. The diver was identified Wednesday night as ...