What if an alien civilization did not just exist somewhere in the universe, but actually reached Earth in the distant past? This video explored the ancient alien theory through the lens of the Fermi ...

A fictional theory created by H. P. Lovecraft ended up changing 2001: A Space Odyssey - and the world.

With For All Mankind Season 5 now streaming on Apple TV and the show confirmed to end with Season 6, longtime viewers have been revisiting a persistent theory about where this alternate history saga ...

Everyone loves a good alien invasion story, preferably one with city-sized ships and physics-defying tech. There's just one big problem with that. The Milky Way is estimated to contain 100 to 400 ...

Donald Trump's directive to release classified files on extraterrestrial life has sparked excitement and conspiracy theories, ...

For decades, the construction of the Great Pyramid of Giza has sparked one of history’s biggest mysteries and plenty of wild ...