Moon dust may be hiding signs of pulverised alien technology, scientist says - Grain-sized remnants of alien technology may ...

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, ...

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

The best way to find alien technosignatures is to look for ones that have long survived their creators, according to a new paper.

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 ...

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 ...

The long-running series in which readers answer other readers’ questions comes up with an epic extraterrestrial playlist for Earth’s first contact from beyond the stars This week’s new question: ...