Due to a weird quirk of geology, New Mexico's Bandera Volcano Ice Cave never warms above 31 degrees Fahrenheit, even when ...

Astronomers witnessed a star emitting as much energy in mere moments as our sun puts out in a few months. The dramatic observation gives a direct look into the brutal physics of these stellar events.

Explosive activity concentrates at the north-east crater of the Mount Etna, as an eruption started on Dec. 24 continues, in Sicily, Italy, Monday Dec. 29, 2025. (AP Photo/Salvatore Allegra) Explosive ...