From Viking to Perseverance, scientists have spent decades chasing chemical hints that could point to life beyond Earth.

Alien spaceships are in a league of their own, though. Earth does have a force field that could make a spacecraft landing ...

“Hollywood has preconditioned us to expect one of two types of alien contact, either a hostile invasion force or a benevolent ...

From mudstones on Mars to strange gases in exoplanet atmospheres, tentative evidence for extraterrestrial life is starting to ...

Polling shows that nearly half of Americans now believe aliens have visited this planet—and that the number who aren't sure ...

Astronomers thought they had seen the "first hints of life on an alien world" this year, but they disappeared under closer ...

After nine films, including sequels, prequels and spinoffs, and now Hulu’s Alien: Earth, the Alien franchise continues to ...

Hawaii’s Gemini North telescope has captured new images of interstellar comet 3I/ATLAS with a green glow as it remerges from ...