When astronomers first picked up a perfectly regular radio heartbeat from deep space in 1967, some of them half-jokingly ...

Exoplanets like Earth have been discovered but not all Earth-like planets are equal when it comes to alien life.

Language and radio signals may not matter to aliens. Instead, they might be using patterns to leave a biological fingerprint.

Sputnik skies to analysis of interstellar visitors, scientists are rethinking how and where to look for physical traces of ...

The premiere episode of Alien: Earth, which is set two years before the events of the original 1979 Alien film, has an opening scene that feels and looks like it was taken straight out of the original ...

A new paper posits that advanced alien civilizations may communicate through subtle flashes, like fireflies do on Earth. The thought experiment suggests that we need to avoid human biases in our ...