The images that recently have gone viral actually date back to 2001.

A strange formation spotted deep within a massive Martian canyon is once again fueling debate over whether something more ...

Evidence of alien life or cosmic pyramid scheme? A documentary filmmaker sparked a discussion of advanced Martian ...

IMAGES of an unusual pyramid-shaped structure on Mars that look like those in Egypt have reignited wild theories about aliens living on the planet. All sorts of bizarre objects have been spotted ...

They were not, so the polemic went, the work of 'puny' man, but instead those 'giants of Mars'. Yes, the Pyramids of Giza - those monuments to god-like splendour that have stood for more than 4,000 ...

Debunking alien claims matters, but so does telling richer, more compelling stories about how humans shaped their own past.