Mount Spurr lies about 80 miles west of Anchorage, which is Alaska's most populous city, making it one of the state's most closely watched volcanoes. It last erupted in 1992, spreading ash over ...

Learn what you should do if you live near an active volcano and how to stay safe before and after an eruption.

Scientists must journey to remote islands in the middle of the Bering Sea, braving uncertain conditions, to reach the ...

Earthquakes are among the most formidable natural disasters, striking with little warning and causing widespread devastation.

W hen Musk and his allies turned their attention to the FAA last month, they identified a problem: The communications ...

Trump’s threats of a takeover have put Greenland on the geopolitical map. At a pivotal moment, we travel to the resource-rich Arctic island to make sense of the hype ...

Walking helps older adults boost both their physical and mental health, and the Bay Area offers widespread accessible trails.

This week, it makes far more sense to test an aspect of our tsunami system that didn’t perform very well last December — who ...

Discover the 20 Most Dangerous National Parks in The US in this in-depth look at extreme terrains, unpredictable wildlife, ...