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

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Researchers in a recent breakthrough study have found the possibility of structures in the Milky Way that could be built by ...

With over decades of films and convincing radio plays, aliens have captivated our imaginations and our worst fears. They’ve ...

The family of a Houston homebuilder from Mexico is in mourning after Lorenzo Salgado Araujo was shot and killed by an ICE ...

A Soviet astronomer in the 1960s proposed a scale to classify hypothetical alien civilizations. Here’s why the framework is ...

The builder got up every morning long before dawn, left home to pick up his construction crew and then headed out to work on ...

With its sweeping curved exterior and towering glass façade, this remarkable building has drawn attention for its dome ...

Tiffany Valiante was just 18 when she disappeared from her New Jersey home in 2015 ...

Scientists have identified new clues that could help astronomers spot one of the most famous hypothetical alien megastructures: a Dyson sphere. The study finds that red dwarfs and white dwarfs are the ...

The Avengers have saved Earth from many extraterrestrial threats, but they're about to face their biggest challenge yet in Aliens vs. Avengers. That's right, Earth's Mightiest Heroes are taking on the ...