Grain-sized remnants of alien technology may get caught in solar wind and land on plants and moons close to us ...

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

Titan, Saturn's largest moon, is home to vast lakes and seas - not of water, but of liquid methane and ethane. In this video, ...

The International Academy of Astronautics issued updated SETI protocols for managing potential alien signal discoveries, emphasising rigorous peer-reviewed verification, control of social media ...

Once small enough, these technograins might gain a trip out of its host solar system by a solar wind that overcomes the ...

For generations, the search for life beyond Earth has focused on avoiding one of science’s biggest mistakes: claiming a discovery that turns out not to be real. Researchers have built entire ...

WASHINGTON — A polarizing Harvard astronomer known for splashy theories about alien visits has been tapped by the Trump administration to lead a team of outside scientists to study the national ...

Add Yahoo as a preferred source to see more of our stories on Google. A new study suggests alien life could be going undetected because scientists focus more on avoiding false discoveries than missing ...

The moment of first contact with extraterrestrials is a staple of science fiction. It usually involves a frantic scientist having a Eureka moment, realising in a single dramatic instant that Earth is ...

The SETI Institute is the latest to confirm what scientists have long suspected: the interstellar 3I/ATLAS comet is not an alien spaceship.

A rare visitor from another star system prompted SETI to hunt for alien technology, but the mysterious object appears to be a ...

Extraterrestrial visitors are not only already here – they are landing in a top secret “alien airport” hidden away in the ...