The curious minds at What If explore what would happen if you mated with an alien.

Are we alone in the universe? Consider mysterious "extraterrestrial" radio signals. Unexplained gases on other planets.

Ancient Lost Worlds and Hidden History. On location videos made by author and adventurer Brien Foerster exploring Peru, ...

Thus far, our search for extraterrestrial life points toward Clarke’s former point, suggesting that our little blue dot is ...

The breakthrough could reveal previously hidden ancient human activity inside caves, acting as ‘genetic archives’ ...

A vast stretch of islands across the South Pacific holds one of the oldest human stories on Earth. For tens of thousands of ...

DNA preservation on cave walls is highly variable, but scientists say their work is an important step on the path toward ...

A Bigfoot hunter who claimed to have found the legendary creature’s corpse now says he has scientific proof the remains are a ...

Ancient encounters between humans and the mysterious Denisovans are still shaping people today. By analyzing genomes from populations across the Pacific, researchers uncovered evidence that the ...

Steven Spielberg says he "would not be the right person" to serve as an ambassador for humanity when we meet aliens. The filmmaker says that he "would really look forward to" a real-life Disclosure ...

Steven Spielberg and aliens go back a long time – they're the cinematic equivalent of peanut butter and jelly. And the history of that successful pairing has led to his new sci-fi thriller "Disclosure ...

Add Yahoo as a preferred source to see more of our stories on Google. Steven Spielberg and aliens go back a long time – they're the cinematic equivalent of peanut butter and jelly. And the history of ...