Large reserves of white hydrogen may exist within mountain ranges, according to a new study, raising hopes this clean-burning gas can be extracted and supercharge efforts to tackle the climate crisis.

Mammoth Mountain temporarily closed at midday on Friday after two ski patrollers were caught in an avalanche, causing serious injuries to one. The recent atmospheric river storm had dumped about 6 ...

At the top of the world, there is a sea—the remains of one, at least. The summit rocks of Mount Everest, the highest elevation on Earth, contain fossils of trilobites, arthropods, and other ...