Experience the wonder and curiosity that drives exploration.

In 1961, geologists Norm Peterson and Ed Groh published the first paper on Hole in the Ground, describing its volcanic origin ...

The bulge first appeared in 1996 and has now returned, but Yellowstone Volcano Observatory says there's no cause for alarm.

If you’re reading this, you probably know the value of the Mercury’s news reporting, arts and culture coverage, event ...

Lava fountains shot almost 1,600 feet in the air, pelting the Kilauea summit and surrounding communities with chunks of ...

"It's like watching a cosmic volcano erupt again after ages of calm — except this one is big enough to carve out structures stretching nearly a million light-years across space." When you purchase ...

Hawaii's Kilauea volcano erupted again this week, sending lava more than 800 feet into the air during a roughly 10-hour eruption, according to the U.S. Geological Survey's Hawaiian Volcano Observatory ...

Hawaii's Kilauea volcano had its latest eruption on Jan. 12, flowing lava for nearly 10 hours and attracting heavy traffic to Hawaii Volcanoes National Park. The volcano began erupting at 8:22 a.m.

The true date of the eruption has long eluded—and vexed—historians of the deadly disaster. Here’s what the archaeological evidence tells us. The ancient city of Herculanum was destroyed by the ...

A massive volcano hidden beneath the Pacific is swelling again, but its predicted eruption never came. Scientists are now racing to decode the signals as pressure builds. Beneath the surface of the ...