Gilbert Levin, who worked on the two Viking landers, maintains that evidence of alien life was found in 1976.
Unexplained markings that have appeared on pavements around Thornhill have left officers scratching their heads.
A new paper has suggested that we may have no choice but to spread microorganisms to the Red Planet.
Scientists have discovered a new microscopic worm species in one of the oldest lakes in North America.
An Arkansas teenager had been driving on Monday night when he came across a rather unnerving spectacle.
Some of the things that make the Moon inhospitable could also be helping to preserve evidence of ET.
A remarkable new study has suggested that until relatively recently, Venus was much like the Earth.
A new paper has put forward the idea that an alien civilization may have been watching us for millennia.
Thousands descended on the West Virginia town at the weekend to celebrate the world-famous monster.
The Crossroads of America Bigfoot Museum in Nebraska is perhaps the most quaint of all Bigfoot attractions.
A world-famous sign situated near the secretive Area 51 facility has been taken down by local authorities.
One angler got the surprise of his life recently when he reeled up this alien-like fish with huge bulbous eyes.
The 18-carat gold lavatory was swiped during an overnight break-in at Blenheim Palace, Oxfordshire.
An Oxford University survey asked the British public who they would trust to respond to first contact with ET.
It turns out that Tyrannosaurus rex had a rather unique way of keeping itself from overheating.
Scientists have discovered an exotic alien mineral that does not occur naturally anywhere on Earth.
A new book has told the story of how Major George Filer encountered and killed an alleged extraterrestrial.
Elon Musk has hinted that SpaceX's next-generation interplanetary spacecraft could be absolutely huge.
Scientists operating China's Yutu-2 lunar rover have discovered a strange 'shiny gel' inside an impact crater.
Archaeologists in Russia have unearthed what is thought to be the remains of General Charles-Etienne Gudin.