The Hranicka Abyss is at least 1,325 feet deep, and likely goes down further. — -- A team of explorers believe they have discovered the deepest known underwater cavern the world in eastern Czech ...

Deep underground, flowing water leads explorers into a cave shaped by constant motion and time. The waterfall inside Nash Cave reveals narrow passages, slick rock, and areas rarely documented.

Extreme explorers attempt the deepest underwater body recovery in history. March 19, 2007 — -- Bushman's Hole, on the edge of the Kalahari Desert in South Africa, is one of the strangest places ...

Deep inside a remote Mexican cave, a pair of explorers thought they had stumbled on modern litter, the kind of plastic and debris that too often mars even the most isolated landscapes. Instead, they ...

Rescuers from across Europe rushed to a cave in Turkey on Thursday, launching an operation to save an American researcher who became trapped almost 3,000 feet below the cave's entrance after suffering ...

We hear how a team of researchers at the University of Northern Iowa is exploring the deepest caves in the U.S. with NASA funding. This could inform the search for life on other planets. Host Ben ...

His wedding was the first time a ceremony was held inside the San Antonio-area caverns.