A tree-ringed African lake has yielded a record of Earth's magnetic field spanning the past 150,000 years.

Serious flooding events in the Guadalupe River Basin ultimately led Congress to authorize building the Canyon Lake Dam.

During many of these eruptions, Hawaiian Volcano Observatory field crews documented “ooze outs” — where lava squeezes out ...

The Midcontinent Rift is a giant tear that formed in what is now the U.S. Midwest 1.1 billion years ago. Nicknamed North ...

We hit the open road to test our yearlong Tundra’s long-distance driving credentials and explore places unknown.

By analyzing how far material ejected from an impact crater flies, scientists can locate buried glaciers and other interesting subsurface features.

This American public park is the only one in the world where visitors can mine and take home real diamonds from their ...

At 82 and 73, my husband and I just hiked the 22-mile Quilotoa Loop. It was challenging but reminded me I'm still capable.

A unique U.S. park is the only place in the world where visitors can search for real diamonds and take home what they find - ...

Of the eight active volcanoes on the USGC watch list, three are relatively easy to explore — Long Valley, Mt. Lassen, and ...

There are some places that some say should never be visited regardless of the time of year or how safe the country they're in ...

This photo taken on April 23, 2025 shows Tianchi crater lake on Changbai Mountains in northeast China's Jilin Province. (Xinhua/Wang Fan) CHANGCHUN, May 14 ...