The Lava River Cave exhaled chilled air. I put on my sweatshirt, despite the hot July day. Though I'd been warned about the sudden drop in temperature to a crisp 42 degrees, it was hard to believe I'd ...

If you're up for an adventure, the Lava River Cave delivers. Approximately 700,000 years ago when molten rock erupted from a vent in nearby Hart Prairie, the milelong Lava River Cave was formed. Today ...

A bit sizzly up there on the surface, is it? Why not hang out down here, underground, with us supremely cool apes? The year-round temperature inside Ape Cave, a lava tube on the southern approach to ...

A bit sizzly up there on the surface, is it? Why not hang out down here, underground, with us supremely cool apes? The year-round temperature inside Ape Cave, a lava tube on the southern approach to ...

Just a four-hour drive from Melbourne, the Byaduk Caves are a mind-blowing underground network stretching for around 24,000 metres ...

FLAGSTAFF, Ariz. -- An 8-year-old boy who went missing at Arizona's Lava River Cave on Wednesday night has been found alive and is being evaluated. Tzion Maron was reported missing at around 6 p.m.

Hawaii’s volcanic environments contain a rich array of mysterious microbes, new research this week has found. Scientists say that the islands’ lava caves and other structures created by volcanic ...

The lava caves, lava tubes and geothermal vents on the big island of Hawaiʻi have higher bacterial diversity than scientists expected, reports a new study in Frontiers in Microbiology. These habitats ...

COUGAR — A bit sizzly up there on the surface, is it? Why not hang out down here, underground, with us supremely cool apes? The year-round temperature inside Ape Cave, a lava tube on the southern ...

The lava caves, lava tubes and geothermal vents on the big island of Hawaiʻi have higher bacterial diversity than scientists expected, reports a new study in Frontiers in Microbiology. These habitats ...