The Harvard astrophysicist has devoted years—and thousands of interviews—to the idea that mysterious objects streaking ...

E.T. the Extra-Terrestrial was a global phenomenon that spawned many knockoffs, with films like Purple People Eater, Badi, ...

In his latest posting spree on social media, President Donald Trump uploaded several images depicting himself blowing up several spacecraft and walking beside a muscular alien in handcuffs.

Data from the James Webb Space Telescope on exoplanet K2-18b has revealed the "strongest hints yet of biological activity outside the solar system," according to a University of Cambridge study.

The planets are extremely large, with TOI-791 b being about the same size as Jupiter, and TOI-791 c even larger. Yet, they ...

Scientists propose building a lab on the moon to screen Mars and other space samples for alien microbes before they ever ...

Alien: Earth star, Timothy Olyphant, reveals that Season 2 will take the story for the prequel series' next chapter in a very ...

New research suggests that alien radio signals may be transformed by plasma from their home stars — and scientists on Earth ...

Researchers at the SETI Institute found no evidence of alien technology after analyzing radio signals from the object. 3I/ATLAS was the third comet ever discovered originating from outside our solar ...