Guadalupe Maravilla draws on his home country of El Salvador as he sculpts backpacks and enlarged hands from volcanic rock.

Researchers believe dark rocks at the site of a future Mars rover landing mission may be left over from ancient volcanic ...

During the long lockdown, I started caring for plants in odd-shaped pots made from pumice volcanic rock from Mount Pinatubo.

It’s like an instant holiday.” In partnership with Avis, the Sydney-based artist and Day Trip co-author shares her go-to ...

Lava spewed from the Kilauea Volcano's summit caldera in Hawaii on December 23. Footage shows the molten rocks forming a ...

Snowflake obsidian is a form of volcanic glass that features white or grayish “snowflake” shapes made of embedded ...

A research team including a University of Michigan scientist has discovered a new mechanism that helps researchers understand ...

To learn more about these rocks, the study authors mapped a region of 19,300 square miles (50,000 square kilometers) using data from the Context Camera on the Mars Reconnaissance Orbiter, a NASA ...

By studying prehistoric rocks and fossils emerging from the side of Mount Ashibetsu in Japan, researchers have precisely ...

Since it's born out of molten rock, obsidian is only found in volcanic regions of the world, including in parts of the United States, such as the Mountain West, Southwest, California, Oregon ...

The rocks from this park in Pennsylvania have been recognized for the strange ringing sounds they make when struck, but what ...