Spielberg's new film imagines what might happen if the existence of non-human intelligence was revealed to the world.
Those within the UFO community spent their day scrutinizing the new documents, images and videos released by the Pentagon.
Former US President Barack Obama says he has seen no evidence extra-terrestrials have made contact with Earth.
Durham University is working with a UK team to develop a camera that can examine Earth-like planets.
Forget UFOs and alien abductions, here's how scientists are really looking for life on other worlds.
Unusual mudstones found on the Red Planet are potentially associated with ancient Martian microbes.
Scientists find new but tentative evidence that a faraway world orbiting another star may be home to life.
Researchers studying planet K2-18b's atmosphere have detected signs of molecules which on Earth are only produced by simple organisms.
