Alien enthusiasts have been left baffled after footage of what appears to be a UFO was spotted flying over an active volcano.

Alien enthusiasts have been left scrambling for answers after a glowing object was captured on camera seemingly hovering over ...

James Dacey investigates a plan to use muons to peer inside the throat of Mexico’s famous volcano, Popocatépetl, to help predict the timing and extent of its fiery outbursts Fiery mountain ...

MEXICO CITY — Mexico's Popocatepetl volcano rumbled to life again this past week, belching out towering clouds of ash that forced 11 villages to cancel school sessions. The residents weren't the only ...