NASA's Perseverance rover made a discovery on the Martian surface, uncovering a skull-shaped rock formation dubbed Skull Hill ...

NASA’s Mars rover is on the trail of a geological mystery in the Jezero crater. While exploring an area known as Witch Hazel ...

During a field trip to the Lava Creek Tuff near Shell, Wyoming ... Argon 40, a stable isotope of argon, builds up in volcanic ...

Discover Armenia's rich architectural heritage, shaped by volcanic tuff and basalt, showcasing its unique identity through ...

While the use of eggshell filters has been put on hold in Jalisco, a different approach to cleaning contaminated water — using volcanic rock — is presently undergoing testing on the banks of ...

Massive lava fountains were sent soaring as high as 700 feet into the air on the big island of Hawaii as it erupted, producing intense heat, glowing streams of molten rock, and plumes of volcanic ...

Hazy conditions are expected to continue throughout the next several days as Kilauea releases more sulfur dioxide and other volcanic fumes into the air. Light southeasterly winds will also ...

Hand-carved arrowheads and jagged spears made of obsidian, a sharp rock formed by volcanic magma, are remnants of vast prehistoric trade networks that once cut across western North America.

Its olive-green sand comes from the erosion of a tuff ring, Puʻu Mahana, formed over 49,000 years ago by a volcanic eruption. To reach this beach, one has to hike a 2.7-mile trail across rugged ...