Mars. From forming black holes to phantom dark energy, discover the cosmic mysteries astronomers uncovered last year.

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

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

NASA reveals high-resolution images of interstellar comet 3I/ATLAS after the US shutdown. Is it alien tech? Associate ...

The Pluribus Season 1 finale brings its central mystery into sharper focus and finally addresses the enigmatic Hive Mind ...

Why is ‘Mars’ trending on Google Trends today, December 25? Yes, the planet is all that everything is talking about– what ...

Pocock, a space scientist at University College London and BBC presenter, predicts alien life will be found by 2075 but ...

A newly resurfaced aviation audio clip shared online has drawn attention after a private pilot reported encountering a ...

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

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

Scientists have sought out and detected radio emissions from from interstellar comet 3I/ATLAS, all but confirming that it has natural origins.