Helgi Hjorleifsson, a firefighter, is a leader in a national experiment to steer rivers of lava away from important sites. Some called it crazy, but it worked.

A mysterious spike of platinum buried deep in Greenland’s ice has long fueled theories of a catastrophic comet or asteroid strike 12,800 years ago—possibly triggering a sudden return to icy conditions ...

Kilauea’s latest eruption dumped as much as 12 inches of volcanic debris across parts of Hawaiʻi Volcanoes National Park, ...

A recent eruption of Kīlauea on Hawaiʻi's Big Island, temporarily closed areas of Hawaiʻi Volcanoes National Park and serves as a reminder to travelers of key volcano tourism safety tips.

If someone told you that you could walk to the top of an active volcano in California, you’d probably assume they were ...

When we think of ice on Mars, we typically think of the poles, where we can see it visibly through probes and even ground-based telescopes. But the poles are hard to access, and even more so given the ...