Imagine receiving an alert on your phone from a government agency at night, warning you about an alien attack, when you have ...

A hoax 'alien invasion' alert in Brazil caused panic and amusement, revealing vulnerabilities in emergency systems.

Add Yahoo as a preferred source to see more of our stories on Google. For decades, humanity has scoured the cosmos for any signs that we aren't alone in the universe. But now, researchers at the SETI ...

Disclosure Day ends with humanity finally learning the truth about alien life, but the film's biggest surprise comes from the message the extraterrestrials deliver as the world stands on the brink of ...

A new SETI study suggests we may be overlooking alien signals not because they aren't there, but because their own stars are scrambling them before they escape into space. Turbulent plasma and ...