The natural world has brewed up a spooky 'skull' in a deep volcanic pit in the Sahara Desert.

From space, the sight really does look like a ghostly apparition – a white face glowering from our planet's rocky skin.

The sinister sight is just a trick of the eye, but it's a real treat to behold.

Human eyes are drawn to finding faces in inanimate objects. It's a neurological bias scientists call ' pareidolia ', and it's always a bit of extra fun if the face we catch a glimpse of is creepy .

In this case, our planet has conjured up quite the countenance. The nightmarish face is formed by the Trou au Natron – an extinct volcano in Chad that is locally known as Doon Orei, which means "big hole".

True to its name, the caldera is up to 1,000 meters (3,300 feet) deep. Its white mas

See Full Page