Why a Harvard professor thinks he may have found fragments of an alien spacecraft at the bottom of the Pacific

Avi Loeb/iStock

After spending years studying the night skies for signs of extraterrestrial life, Harvard University astrophysicist Avi Loeb believes he has found proof of their existence at the bottom of the Pacific Ocean.

Professor Loeb has just completed a $1.5m expedition searching for signs of a mysterious meteor dubbed IM1 that crashed off the coast of Papua New Guinea in 2014 and is believed to have come from interstellar space.