As Hilo was bustling with activity for the Merrie Monarch Festival, Kilauea was brewing for episode 44 of lava fountaining, ...

An active volcano erupts intensely in a stark, frozen landscape, creating a striking contrast between fire and ice. Bright ...

Want to see natural wonders in California that seem impossible to believe? These 10 amazing locations offer incredible sights ...

For a few days each year, a waterfall in Yosemite seems to turn into lava. Here’s how the famous “firefall” works—and why ...