Sn oòng Cave lay completely undisturbed, hidden deep within the Vietnamese jungle, for millions of years. That was until just ...

Vietnam's Son Doong, the world's largest cave passage, started its life millions of years ago as a crack the width of a piece ...

The longest known underwater cave in the world is even longer than we thought. As of the start of this year, cave divers have mapped 524 kilometers (325.6 miles) of a subterranean water 'web' near ...

Divers in Mexico's Yucatan Peninsula say they have discovered the world's largest underwater cave. Underwater archaeologists discovered last week that the cave system known as Sac Actun, located near ...

NEW YORK (AP) — Handprints on cave walls in a largely unexplored area of Indonesia may be the oldest rock art studied so far, dating back to at least 67,800 years ago. The tan-colored prints analyzed ...

Katie has a PhD in maths, specializing in the intersection of dynamical systems and number theory. She reports on topics from maths and history to society and animals. Katie has a PhD in maths, ...

From lava tubes on Mars to ice pockets on Europa, subterranean environments may offer the best chance of finding life—and living safely—beyond our planet. “I was like, ‘OK, I'm pretty sure that ...