First seen from space in 1965, the Eye of the Sahara is a beautiful 25 mile structure, but how it formed remains a mystery. And are extraordinary clouds emanating from an ...

Is it possible that sightings of alien beings or UFOs may actually be evidence of time travelers from the future? And might ancient astronauts actually be time travelers ...

From The History Channel : If ancient aliens visited Earth in the remote past, could they have given us advanced technology, past down through human history? And could th ...