Fiery lava poured down the side of Mount Etna as its southeast crater erupted on Tuesday, April 22, sending plumes of smoke ...

Check out 24 of the world’s must unusual landscapes — from the hellish Darvaza Gas Crater in Turkmenistan to the “snow ...

This false-color satellite photo from 2014 shows the immense heat emanating from lava lakes at the summits of a pair of ...