A new study led by University of Wisconsin-Oshkosh geologist Timothy Paulsen and University of Colorado Boulder ...

NASA's Juno mission finds a massive lava lake in Jupiter, offering new insights into volcanic activity beyond Earth and the ...

Within the Hawaiian islands, scientists have found multiple noteworthy metals, including gold, inside the volcanoes. “The ...

Yooperlites are a variety of sodalite-rich syenite found in the Upper Peninsula of Michigan.

Formed after a volcanic eruption when lava cools so fast that mineral crystals are unable to form, the rock appears as amorphous dark-colored glass known as obsidian. Notable qualities of obsidian ...

Earth’s core is apparently a bit leakier than scientists expected. In a new study published in Nature, researchers describe ...

It’s the original source of my lava and my crater lake ... Then the heat of the surrounding molten rock should start warming the obsidian of the glass pocket back up again slowly, until it melts back ...

The Yellowstone Plateau Volcanic Field has some of the largest rhyolite lava flows on Earth. Have you ever wondered what these flows look like in their interior, or how the ...

Discover how an analysis of more than 700 objects reveals obsidian came into the Aztec capital from far and wide.

Hand-carved arrowheads and jagged spears made of obsidian, a sharp rock formed by volcanic magma ... "It's formed when a volcano erupts and lava cools really, really quickly," Allan said.