The Veryovkina Cave was the deepest-known cave on Earth, and experts stumbled upon it before daring to attempt a dangerous mapping of the depth.

On Sunday’s episode of The Excerpt podcast: Hidden beneath Earth’s surface are caverns and pathways that hold the secrets of our planet’s very beginnings. Even after decades of exploration, there are ...

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 inside Pettyjohn Cave lies a tunnel so narrow that every breath echoes against stone. Explorers must crawl for hundreds ...

The park was founded by a former U.S. Navy diver who envisioned a unique underwater spectacle that would bring people from ...

I'm a severe claustrophobe. After getting trapped in a slide in my local McDonald's at five years old, I swore off all tight and dark spaces forever. So it's not entirely surprising that I couldn't ...

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 ...

From the deep ocean floor to vast underground caverns beneath our feet, these places challenge our understanding of the world.

The CAVES training tests astronaut teamwork, resilience and scientific focus all needed for the challenges of spaceflight.

What started with a UVA caving club now has a Class of 2024 alumnus mapping rivers and crystal chambers in caves across the ...

His Majesty King Maha Vajiralongkorn and Her Majesty Queen Suthida have granted royal patronage to Mr. Vernon Harry Unsworth, ...