The deepest caves on Earth are still being studied by scientists. They are unique environments created over millions of years of geological processes. They usually occur in areas rich in limestone ...

There are very few places on Earth that remain untouched and unseen by humans. For true explorers, the final frontier is not a distant speck in the sky, it is the underground realm beneath our feet.

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 ...

PRAGUE (Reuters) - Czech divers are preparing to search the world's deepest underwater cave again to see if there is more to be discoverer from its already record-breaking depths. Last September ...

British cave explorers continue to uncover new geological wonders beneath Phong Nha-Ke Bang National Park, more than three ...

In 1965, a diver named Jim Houtz dove into a desert pool in Nevada and descended to over 300 feet without reaching the bottom. To date, no one has been able to figure out how deep that cave actually ...