Social media videos showed people running into the streets as bright orange flames and smoke spewed into the sky.

Blue Grotto is a cave that requires you to descend a ladder to enter, which immediately makes you feel more like an explorer and less like a tourist. The cave features beautiful blue-tinted ice ...

CBS correspondent David Begnaud felt burned out and depressed after years of covering mass shootings and other tragedies. Now ...

Taftan volcano in southeastern Iran rose 3.5 inches over 10 months, signaling that it is waking up after 700,000 years of dormancy.

A restarted black hole in J1007+3540 reveals how episodic jet activity and cluster pressure sculpt giant radio galaxies. Astronomers have captured one of the clearest views yet of a black hole ...

Step into an underground lava cave hike in Arizona, where cool air, dark tunnels, and rugged volcanic walls turn a simple walk into a bucket list adventure.

Volcanoes erupt because hot, melted rock from deep inside the Earth finds a way to reach the surface. This melted rock is called magma, and it forms when parts of the Earth’s mantle become so hot that ...

Now, that volcano-fueled set is headed to Denver. Comedian Ben Miller brings his Volcano Show to the Denver Museum of Nature & Science on April 24 at 7 p.m. Expect lava-level heat, eruption-worthy ...

Volcanoes erupt because hot, melted rock from deep inside the Earth finds a way to reach the surface. This melted rock is called magma, and it forms when parts of the Earth’s mantle become so hot that ...

Scientists have confirmed a massive underground lava tunnel beneath Venus using radar data from NASA’s Magellan mission.

Deep in New Mexico's Zuni Mountains, researchers have been studying an unusual desert feature: a cave that remains frozen ...