Scientists are delving deep into the belly of the Earth. Who are these cave explorers, what have they found, and what do they ...

very few divers have seen the bottom of these limestone chambers. This two-part cave system is divided into separate sinkholes, consisting of Diepolder II and III, with the latter recorded as ...

Foreign divers, including Ivan Karadzic (2nd left) and Erik Brown (3rd right), were part of the extensive rescue operations The rescuers who worked to save the group trapped in a Thai cave were a ...

I glance at my guide, Brian Kakuk—one of the world's foremost cave divers. He appears unfazed. My head begins to throb; clearly, I'm unusually sensitive to the toxin. In the epic poem Beowulf ...

Cave diving is one of the most dangerous sports in the world. And Heinerth says diving inside that iceberg in Antarctica was her most dangerous dive to date. "I was the first to cave dive inside ...

"He is brilliant with children, and he would have made sure that they were prepared in the best possible way from a cave-diving perspective," she said. "He would have been the perfect person to ...

(This program is no longer available for streaming.) Follow a fearless team of scientists as they venture into blue holes—underwater caves that formed during the last ice age, when sea level ...

On one dive into a blue hole on Great Abaco Island ... this boa species still lives on the island. The cave swallow (Petrochelidon fulva) is a small, stocky songbird that builds its nest in ...

Our drive to understand the evolutionary history of life on Earth leads us to search for clues deep underground. Cave divers are at the forefront of this research, helping us access some of the ...