Whether you're thinking about a hike up a mountain or just seeing it from a distance, these are the best mountains and highest points across the U.S. you should be visiting.

About 1000 kilometers off the coast of Portugal, hidden beneath the surface of the Atlantic Ocean, lies one of the most interesting geological features on Earth. Stretching roughly 500 kilometers, the ...

An astronaut aboard the International Space Station photographed Lake Coatepeque, a vivid blue lake nestled inside an ancient volcanic caldera in El Salvador. Credit: NASA A breathtaking astronaut ...

Up in the northeast corner of California sits a volcanic wonderland most people forget exists. Lava Beds National Monument contains more than 800 caves formed by flowing lava. These aren’t your ...

Scientists compare volcanic cones on Earth and Mars to explain how gas-rich magma forms scoria cones. Spacecraft observations and Earth analog sites provide evidence of similar eruptive processes.

The liquid outer core is surrounded by the thick layer called the mantle. It’s mostly solid rock, not melted like lava. Over time, changes in heat and pressure make the solid rock slowly flow. It’s ...

Kris Wang is a fourth-year undergraduate student at Scripps Institution of Oceanography at UC San Diego, where he is studying geosciences with a focus on volcanology and igneous petrology.

Since the 1970s, planetary geologists have known that volcanic features cover large swaths of Mars. Early Mariner 9 images ...

Kekkei Genakai techniques sit at the top of Naruto's power scaling system. Which one is the most strongest compared to the rest?

Explore the most stunning caves in California, from lava tubes and marble caverns to sea caves carved by waves along dramatic coastlines.

Blue Grotto is a cave that requires you to descend a ladder to enter, which immediately makes you feel more like an explorer and less like a tourist. The cave features beautiful blue-tinted ice ...