It's almost certainly not an extraterrestrial telegram. But waves that seemed to come from the vicinity of Proxima Centauri ...

Data from the James Webb Space Telescope on exoplanet K2-18b has revealed the "strongest hints yet of biological activity ...

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

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

The most sensitive radio scan in history found no signs of alien tech on interstellar object 3I/ATLAS. Discover why this ...

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

Since its discovery, some people have speculated that interstellar visitor 3I/ATLAS could be alien technology. Harvard ...

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

Following speculation that comets could have been alien spacecrafts, more and more experts in the field are convinced that ...

Decades ago, a spacecraft suggested Saturn's largest moon, Titan, had an ocean. New observations suggest that the liquid may look more like slush.

Long before scientists discovered that other stars in the universe host their own planetary systems, humanity had ...