The Chemistry Behind Cave Formation Cave formation starts with a simple chemical reaction between water and carbon dioxide in ...

On this episode, 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 ...

Visit Ash Cave in Ohio for a chance to dive back in time and experience history first-hand.

This summer, Richard Brown and five others from around the country hiked almost 30 miles into the Bob Marshall Wilderness to explore an underground wilderness few have seen. More people have walked on ...

The cavern along the border of Greece and Albania is home to a terrifyingly high number of two species of arachnids that live ...

Hells Canyon, the deepest river gorge in the United States, likely got rapidly carved 2.1 million years ago when a shifting landscape in Idaho caused a giant lake to start overflowing. That's ...

Centuries of eruptions on the Big Island have created hidden networks of passages beneath volcanoes. In December 2016 a large lava delta formed by Kilauea volcano sank into the sea, exposing the mouth ...

Scientists have long theorized the existence of lunar caves — underground passageways formed through volcanic processes that are connected to the pits covering the moon’s surface. Now, a team of ...

When Aidan Ward answered his phone from a clearing off the side of a road in southern New Mexico, he was exactly where he wanted to be: helping a geologist friend with cave research at Carlsbad ...