but the pictures only surfaced this week on Reddit. According to the original poster, UFOnatuer, a professor from the University of Pavia, Italy, had a close encounter with an alien while at work ...

The BepiColombo spacecraft has captured stunning new closeup images of Mercury's alien surface, from its icy craters to its sun-baked plains.

Aliens are some of the most enduring creatures in the human imagination, alluring with the promise of the unknown and posing a threat. Indeed, throughout the 20th century, both film and TV have ...

A self-taught photographer has been capturing the "alien world" of insects. Lee Frost, from Newcastle-under-Lyme in Staffordshire, said he liked taking the macro images "of what's just around us".