A new type of flying reptile from the age of the dinosaurs has been unearthed in the Andes mountains.
Taken from a plane in 1971, the image shows what appears to be a metallic saucer flying through the air.
Scientists have revealed the discovery of the world's largest known crown jellyfish and it looks decidedly alien.
A video clip of a deer leaping so high in the air that it appears to be flying has emerged online this week.
Images of an alleged flying saucer taken at a farm in Oregon in 1950 generated controversy and debate in equal measure.
A pilot flying over the Pacific has captured footage of several sets of lights moving in formation through the clouds.
A couple in Scotland last week spotted something very unusual flying over the city's skyline.
A recent image of an alleged UFO in England has been thoroughly debunked by the former MoD investigator.
Three people had been driving in northeastern Illinois when they saw a flying creature with 'human proportions'.
A flight instructor flying near Palos Verdes recently captured footage of a jetpack traveling at high speed.
Palaeontologists have shed new light on the evolutionary history of these abundant prehistoric flying reptiles.
For the second time, pilots have witnessed a 'jetpack' flying at altitude over Los Angeles International Airport.
US Air Force leaders were on-hand to witness a test flight of the drone-like Hexa 'flying car' last week.
Back in 1948, an effort to pursue an unidentified flying object resulted in the untimely death of a young pilot.
Beachgoers at Mt Maunganui couldn't believe their eyes when they saw this strange spectacle earlier this month.
A short video clip showing a glowing object flying out of a volcano has been recently doing the rounds online.
Peculiar footage recently recorded in India appears to show a monkey sitting on a rooftop flying a kite.
A strange video showing a vaguely human-like figure floating in the sky has recently appeared online.
A video uploaded earlier this week shows an anomalous object flying high over Brazil's most populous city.
Is it possible that unidentified flying objects are piloted, not by aliens, but by our own future descendants ?