Alien

A proposed way to search for alien life using tiny rocks ejected from other worlds.

A new study finds that quantum signals could travel over interstellar distances.

This probability would be the same as that of an Earth collision with a global-catastrophe asteroid.

Perhaps they are everywhere?

Scientists have begun the search for extraterrestrial life in the Solar System in earnest.

A new strategy based on game theory could tip the odds of finding them more in our favor.

A new formula that others can use.

It could someday detect organic biosignatures in extraterrestrial soil.

It was a shock!

The exploration was more broadly than any previous search for extraterrestrial life.

Life appears in many forms, and scientists believe that the technosignatures identifiable on Earth will also be identifiable in some fashion outside of the...

Since the beginning of civilization, humanity has wondered whether we are alone in the universe. Obtaining good estimates of the number of conceivable extraterrestrial...