The long-running mystery of whether or not this peculiar prehistoric creature was a vertebrate may finally have an answer.
A woman from the UK couldn't believe her eyes when she came across the peculiar disembodied appendage.
Scientists believe that they have definitively proven that the interstellar visitor 'Oumuamua was not an alien spacecraft.
A strange incident involving a glowing silt pond would go on to spark a mystery that would endure for over four decades.
Authorities are attempting to determine how an injured serval wild cat found in Ohio had the illicit drug in its system.
Former BBC producer Simon Holland believes that he may have found an explanation for the famous 1990 UFO photograph.
Two Chinese astronauts recently conducted a secretive spacewalk outside the Tiangong space station.
Several Mid-Atlantic states on the East Coast saw reports of a dust-like powder falling from the sky last week.
The remains of a creature described as a 'mer-monkey' have been kept at Japan's Enju-in Temple for decades.
A mysterious metal sphere has been the focus of much speculation since it appeared on a beach in Hamamatsu.
A series of green laser beams descending from the sky appeared over the islands of Hawaii back on January 28th.
Three unidentified objects have now been downed by fighter jets over North America and we still don't know what they are.
Astronomers have identified a very unusual galaxy that could help improve our understanding of dark matter.
The 45-year-old's mysterious disappearance remains a total enigma as it looks doubtful that she fell into the river.
Archaeologists have shed possible new light on the nature of some enigmatic burials found in the ruins of a Roman villa.
Nicola Bulley vanished while walking her dog last Friday morning and police investigators have been unable to determine what happened.
Archaeologists excavating a car park off the coast of Northumberland, England have unearthed seven skeletons.
Authorities have been left baffled by the appearance of several mystery antennas over the last couple of years.
Police have been attempting to identify a mystery man who turned up in England last year with no recollection of who he was.
Nobody knows what became of the crew of the infamous ghost ship which was found adrift and deserted in 1872.