The scientist has outlined the 'potentially devastating and irreversible long-term impacts' of unknown organisms in space ...

From "Independence Day" to "Invasion of the Body Snatchers", movies and TV shows are packed with advice for anyone aspiring ...

Scientists suggest that advanced aliens might not have physical bodies, challenging traditional views of extraterrestrial ...

A mind wrapped in skin and bone can feel like the obvious model for consciousness. But that assumption may say more about ...

A set of protocols telling scientists what to do – and what not to do – if they ever detect evidence of intelligent life ...

The nature of space, time and the evolution of life on Earth mean it’s unlikely extraterrestrial life has visited our home ...

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

Spielberg's new film imagines what might happen if the existence of non-human intelligence was revealed to the world.

Disclosure Day treats extraterrestrial life as a challenge to faith. It’s not.

There’s no data to suggest that aliens exist. However, if we believed they existed and came to Earth, our planet would offer ...