A bizarre encounter by six schoolchildren in 1979 is the subject of a new investigation by Dr Simon Young.
Astronaut Scott Kelly spent 340 days aboard the space station while his twin brother remained on Earth.
A storm off the coast of Germany has strewn large numbers of Kinder eggs all along the shoreline.
Scientists have discovered a superbug that has remained isolated underground for millions of years.
A large hexagon-shaped feature in Saturn's atmosphere appears to have changed color from blue to gold.
The mysterious Victorian mansion has remained a place of intrigue since Sarah Winchester's death in 1922.
A mysterious snakeskin found in Maine recently has turned out to be from a very large snake indeed.
A huge snakeskin measuring 12ft in length has been found near Riverbank Park in the US state of Maine.
The origins of a granite marker on an island in Massachusetts have remained a mystery for years.
A 600-mile-long coral reef at the mouth of the Amazon river has taken scientists completely by surprise.
Land art and sculpture artist David Allen has captured footage of a peculiar natural phenomenon in Maine.
An English archaeologist believes that Queen Nefertiti may lie in a secret room in Tutankhamun's tomb.
Bill Brock has been investigating two recordings which show a mysterious figure out in the woods.
A local witness reported a strange object which remained in the vicinity for almost two hours.
A notebook belonging to a member of Robert Scott's Antarctic expedition team has been found in the ice.
Teenager Meghan LaPlante discovered the crustacean while checking lobster traps at the weekend.
The states of Vermont, Arizona and Maine were home to the most sightings per capita last year.
Several newly declassified documents have lifted the lid on Area 51 and the struggle to keep it a secret.