Scientists may have finally solved the mystery of the unexplained hissing sound associated with meteors.
Two partial human skulls unearthed in central China could belong to an unknown archaic human species.
An unexplained spike in radiation was picked up across a number of European countries last month.
A peculiar prehistoric discovery has left scientists scratching their heads for more than five decades.
NASA's Dawn spacecraft has found carbon-based materials similar to those found on the early Earth.
An old type of aircraft commonly used during Word War II has been sighted numerous times over Derbyshire.
It has now been four decades since a group of children witnessed a UFO outside their school in Wales.
Doctors in Massachusetts have been left scratching their heads over a recent spate of amnesia cases.
Authorities in Wales are attempting to work out who chopped down hundreds of beech trees near Caerphilly.
An independent investigation in to the long-running mystery has managed to dig up an important new clue.
Authorities have been investigating how thousands of Skittles ended up scattered across a rural highway.
Ecologists believe that they may have finally solved the mystery behind Namibia's mysterious circles.
As many as 20,000 fish and other sea creatures have recently washed up in Canada and nobody knows why.
A peculiar 151-mile-wide anomaly is believed to lie beneath a region of Antarctica known as Wilkes Land.
A photograph of six women sitting on a sofa has gone viral online due to a rather peculiar abnormality.
Scientists have detected a further six mystery radio bursts originating from outside of our galaxy.
A mysterious metallic sound recorded by researchers could actually be a never-before-heard whale call.
An ancient civilization is believed to have built standing stones in the rainforest over 1,000 years ago.
A shaggy object covered from top to bottom in barnacles has washed up on Muriwai Beach in Auckland.
Strange balls of light have puzzled visitors and locals alike in Western Queensland for over a century.