When they awoke aboard the Orion spacecraft, the astronauts were approximately 169,000 miles from Earth and closing in on the ...

Geochemical analysis of erupted tephra samples over the past decade help scientists understand the temperature of Kilauea’s shallow magma system under the summit — and things have been “heating up!” ...

A vast underwater plateau off the coast of Brazil was once a tropical island covered in red soil and lush vegetation. That ...

Despite the dry winter, spring is when waterfalls are at their most breathtaking. Witness a snowmelt waterfall firsthand in ...

• Artemis II heads to the moon: Four astronauts on the Artemis II mission are on their way to journey around the moon after ...

On the dark volcanic peaks of the Hudson Mountains in West Antarctica, pale pink boulders sit perched against all odds. The ...

Lava River Cave is the longest lava tube in Arizona, stretching nearly a mile into the earth, and it’s one of those rare ...

In a major discovery, university students have uncovered new truths about old stones. They studied how some of the old carvings in lava rocks found around Hawai’i may have been made. And it ...

Palouse Falls represents the surprising side of the state, the part that makes people do double-takes and ask if they’re ...

A month after the eruption of the Piton de la Fournaise volcano on France's Réunion island began, the lava flow has reached the ocean for the first time in 19 years, creating a spectacular meeting of ...

Researchers discovered that massive lava flows and collapsing lava ponds at Axial Seamount reveal how underwater eruptions ...

Mission scientists spoke to Nature about the geological features they’re most excited for the crew to observe.