To time how fast a sprinter runs, you just need a stopwatch. To time how fast magma moves, you need to know a little bit ...

Moab, Utah, is a paradise for thrill-seekers who crave the rugged and wild ... Beyond the enchanting world of Disney, there ...

It’s yet another injury that would seem likely to keep him out of the Masters and perhaps other major championships this year.

An erupting Hawaii volcano once again began shooting fountains of lava that reached hundreds of feet high on Tuesday. Fountains reached heights of 400 feet (120 meters) to 500 feet ...

The Kīlauea volcano at Hawai'i Volcanoes National Park continues to put on a dazzing show, with fountains of lava being spit 400-500 feet into the air.