"Star Trek" is home to countless alien species, many of whom offer beloved characters. Some are not. We rank the 10 most ...

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

War of the Worlds is one of Steven Spielberg's darkest films, and it was heavily influenced by a sci-fi horror classic that ...

You're going to see a lot of stories in 2026 claiming soon-to-be-achieved science and tech advances. Here are the ones just ...

With 3I/ATLAS streaking away from our planet, speculation remains as to whether the interstellar comet is alien or not.

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

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

Historically, many scientists and society have been fascinated by the prospect of making contact with extraterrestrial ...

We ask one of the biggest questions in science do aliens exist. Astronomers search for planets that could support life. Water ...

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

Forget the grainy footage of 'flying saucers' or the campy sci-fi tropes of little green men from Mars; the search for ...

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