National park deaths mount as visitors break safety rules despite repeated ranger warnings — risking burns, falls and more. The latest fatality involved a resident of Hawaii.

The geyser is likely to fall back into dormancy soon, but there's a slim chance the spectacular eruptions will continue into ...

Yellowstone’s Echinus Geyser awakens after years of dormancy, offering rare eruptions and unforgettable experiences for ...

A widespread bacteria called "soap scum" grows in Yellowstone National Park's thermal pools that on the surface doesn't seem ...

A visual road-trip shortlist of 10 unforgettable landscapes across the United States, from mile-deep canyons and steaming thermal basins to cave cathedrals, wetlands, volcanoes, and towering dunes.

A project underway in New Haven shows the potential of the system, which harnesses heat beneath the earth. But it's not suitable everywhere.

Explore unforgettable California road trips featuring dramatic coastlines, desert landscapes, redwood forests, mountain ...

The Historic Original McDonald’s Museum in San Bernardino celebrates the birthplace of fast food with a collection that’s ...

Hawaii's Kilauea volcano is shooting lava fountains up to 1,000 feet, and falling ash and volcanic fragments are forcing ...

Kīlauea volcano on Hawaii’s Big Island erupted on Tuesday in a nine-hour spectacular, shooting fountains of lava some 1,300 feet into the air, according to the U.S. Geological Survey (USGS).

The Echinus Geyser at Yellowstone National Park, which is the biggest acidic geyser on the planet, has been “wowing” visitors ...