A mysterious metal shard, once thought to be a piece of a UFO that crashed in 1947, has sparked years of wild speculation.

The research is mounting up that we might not be alone in this big wide world. So what's the likelihood that aliens are out ...

The unusual specimen raised eyebrows because it appeared capable of causing levitation. An official investigation has not ...

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

Scientists searched 27 exoplanets for alien technology using planetary eclipses, revealing a new way SETI hunts signals ...

The earlier two were ‘Oumuamua, discovered in 2017, and 2I/Borisov, found in 2019. For scientists, 3I/ATLAS is important because it gives a rare chance to study material from another star system ...

It's difficult to believe that, given the enormous extent of outer space around us, there aren't other life forms out there. Humanity has long been intrigued by the idea, with movies, books, and TV ...

A Harvard astronomer is making waves by suggesting that a massive interstellar object hurtling through our solar system might be an alien spacecraft. Professor Avi Loeb, who also serves as director of ...