3
Scientists have determined what made the notorious Roman cave so deadly to those who ventured inside.
48
Claudia Ackley has taken it upon herself to sue the state for refusing to acknowledge the existence of Bigfoot.
5
Consisting of 16 separate images, the impressive vista was captured using the rover's wide-angle lens.
112
A photograph taken at Eynsford Castle in Kent, England appears to show a mysterious cloaked figure.
2
The notoriously hot and dry Sahara was left coated in a layer of snow following a winter storm on Sunday.
6
The mysterious space rock contains micro-mineral compounds found nowhere else in the solar system.
45
A hidden code may have finally lifted the lid on the mysterious hijacker known as DB Cooper.
36
The Mars Curiosity rover has discovered some rather peculiar structures and nobody knows what they are.
10
Our planet is making a continuous low humming sound and nobody is quite sure what is causing it.
5
Doctors have found brain abnormalities in some of the victims of the mysterious acoustic attacks in Cuba.
34
The Google Brain project has created an AI that is capable of designing a 'child' AI superior to itself.
41
The deafening sounds, which have been heard in dozens of locations this year, remain unexplained.
23
A periodic slowing of the rotation of the Earth is likely to result in an upsurge in earthquakes next year.
41
A mysterious world 4,000 times more massive than the Earth has been found lurking 22,000 light years away.
9
Public health officials have been sent to investigate the mysterious deaths of four men in Kalasin province.
57
Built on an island in the middle of the Pacific, this mysterious ancient city remains a modern-day enigma.
1560
Japanese and French scientists have announced the discovery of what could be a large hidden chamber.
73
For the first time ever, astronomers have spotted what is thought to be a visitor from a distant star system.
4
A couple plagued by mysterious letters from the 'Watcher' have been struggling to sell their home.
4
A mysterious building discovered at a former RAF base has turned out to be an anti-aircraft gun position.