Harvard astrophysicist Avi Loeb is one of the biggest proponents of the theory that the comet was sent by an alien ...

These are the 10 best time travel episodes in Star Trek history, ranked for you to watch when you're in the mood for some ...

EXCLUSIVE: Gene Sticco, a national security expert and ex-Air Force nuclear protection specialist, has theorised that the ...

According to a new scientific hypothesis, alien civilisations may only become detectable at the moment of their collapse.

The past 12 months have read like a science-fiction novel, with thousands of UFOs swarming over the US East Coast, an ...