The third known visitor from another star system, Comet 3I/ATLAS, has been racing through the Solar System with just enough ...

Some of the most tantalizing hints in the search for extraterrestrial intelligence have not been messy or chaotic, but eerily ...

I/ATLAS shows baffling energy and composition that defy cometary physics, sparking scientific scrutiny and debate over its ...

The key idea behind our framework is that life produces molecules with purpose, while nonliving chemistry does not. Cells ...

With the countdown to Baba Vanga’s 2025 alien prediction, astronomer David Kipping proposes a controversial theory about the ...

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

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

SETI's 1977 "Wow!" signal from deep space was even stronger than originally thought, but its source remains a complete mystery.

A new study reveals the likely origin of a mysterious spider-like pattern first spotted on Jupiter's moon Europa in 1998. The finding could have implications for a NASA spacecraft en route to the ...

Steven Spielberg's eerie 'Disclosure Day' trailer has ignited alien theories online. Is it hinting at hidden extraterrestrial truths that governments are hiding?

An eye-catching pattern on the surface of Europa, an ice-covered moon, may have profound implications for our understanding of the Jovian satellite.