Aliens in Our Imagination: Friendly or Frightening? From the pointy ears of the Vulcans to the razor-sharp teeth of the Xenomorph, humanity has never stopped imagining what aliens might look like.

In Chile's Atacama Desert, the biggest telescope ever built is taking shape – and it could radically change our view of the ...

Cold War-era files show diplomats searched for answers after reports of a strange sphere crash sparked international interest ...

A group of experts provided their own estimates as to when actual proof of alien life will be discovered. According to the scientists, it is possible that traces of alien life will be found on Mars or ...

The Pentagon has released 41 new UFO records, including videos of unexplained objects over the Middle East and reports from Brazil, Afghanistan, Europe and other locations.

Extraterrestrial civilisations could give themselves away by the night-time glow of their cities. And if there is one lurking in the outer reaches of our solar system, we are ready to find it.

Add Yahoo as a preferred source to see more of our stories on Google. Photo Credit: Niko Tavernise/Universal Picture Disclosure Day, the upcoming sci-fi movie from director Steven Spielberg, revolves ...

Disclosure Day, the upcoming sci-fi movie from director Steven Spielberg, revolves around a plot to prove that aliens exist. Many fans have taken this to heart and believe that Spielberg is teasing ...