"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." ...

Sicily's Mount Etna erupted last week with a dense column of ash and smoke thrown thousands of feet in the air as satellites looked on from above. The Copernicus Sentinel-2 mission captured the ...

A remote underwater volcano in the Pacific has erupted again, hurling superheated material into the sea and staining the ...

NASA's 2001 Mars Odyssey orbiter captures one of the Red Planet's biggest volcanoes peeking over clouds at dawn. When you purchase through links on our site, we may earn an affiliate commission.

Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. A supermassive black hole is reawakening inside a distant galaxy ...

A source of fascination for scientists are the volcanoes on distant icy moons, such as Jupiter's moon Europa and Saturn's moon Enceladus. These moons have liquid water underground that erupts to the ...

Scientists have observed a supermassive black hole waking up from a nearly 100 million-year nap. The black hole lies at the center of a gigantic galaxy that's emitting extremely strong radio waves. A ...

A supermassive black hole is reawakening inside a distant galaxy cluster—and after almost 100 million years of slumber, astronomers now say it’s making up for lost time. According to a study published ...