Experts have been left perplexed by the unexplained deaths of millions of kangaroos in Australia.
65-year-old Fethi Ada and his family had been out fishing when they encountered something rather unusual.
An asteroid thought to have come from another solar system is to be checked for signs of alien technology.
The mystery of who paid $450 million for Leonardo da Vinci's 'Salvator Mundi' has now been solved.
Back in October, aviation authorities investigated an unidentified aircraft flying over the West Coast.
A series of names carved in to the rocks of Dalhousie Mountain are thought to date back over 100 years.
The 500-year-old painting, which sold for a record-breaking sum at auction, has a few peculiarities.
A video allegedly recorded by a fighter jet based on the carrier USS Nimitz has surfaced online recently.
Researchers studying Polish composer Frederic Chopin have finally solved the mystery of his death.
The creator of a huge crop message spotted in the UK by a police helicopter has finally been found.
A British newspaper received a strange phone call a mere 25 minutes before Kennedy's assassination.
Over 400 unexplained structures have been discovered in the Saudi Arabian desert using Google Earth.
Authorities have been investigating a recent 'attack' on a number of protected 200-year-old trees.
A couple plagued by mysterious letters from the 'Watcher' have been struggling to sell their home.
A long-standing mystery concerning the whereabouts of the universe's missing matter has been solved.
A hole in the ice larger than the Netherlands has been described by scientists as 'quite remarkable'.
The popular cookie brand is offering a cash prize to anyone who can guess the flavor of its new product.
A mysterious building discovered at a former RAF base has turned out to be an anti-aircraft gun position.
Divers have recovered several statue pieces and a mystery bronze disc from the 2,000-year-old shipwreck.
Special software is being used to solve the mystery of who betrayed Anne Frank's family to the Nazis.