A MYSTERIOUS hole on Mars could be harbouring alien life in an extensive network of underground tunnels, according to Nasa. From orbit, scientists have captured a deep pit on the Red Planet that ...

Fluorescent caves deep below America show how alien life could exist on one of Jupiter's moons, say scientists. The chemistry in Wind Cave, South Dakota, means that, under an ultraviolet (UV ...

NASA spots a mysterious 100-meter hole on Mars that could lead to underground caves — raising hopes of hidden alien life and ...

NASA has revealed a 328-foot-wide hole on Mars, potentially a gateway to subterranean caves that could harbor alien life.

Astrobiologist Joshua Sebree of the University of Northern Iowa suggests that South Dakota's Wind Cave exhibits chemical similarities to Jupiter’s icy moon Europa. Europa is a fascinating world ...

A MYSTERIOUS hole on Mars could be harbouring alien life in an extensive network ... lower levels that extend into expansive underground caves," Nasa explained. "If so, these naturally occurring ...