Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. During a field trip to the ...

A recent study reveals that the Poás volcano has changed its eruption pattern, redefining the global ash-related risk map.

Wyoming is home to massive natural formations, as any visitor to the Grand Teton National Park can attest, but those formations also hide secrets. Beneath layers of ancient ash, evidence of two ...