For decades, scientists have scoured the skies and planetary surfaces for evidence that life might exist beyond Earth. New ...

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 ...

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

Breakthrough Listen searched for technosignatures from interstellar comet 3I/ATLAS but found no unusual signals or behavior ...

Steven Spielberg has yet to reveal much about his upcoming alien movie, but some conspiracy theorists think actual extraterrestrials could be featured.

In the many decades of NASA exploration, there has only been one detection that got on that scale. It was collected by the ...

Space mining tech and robotic prospecting are unlocking extraterrestrial resources, reshaping future energy, manufacturing, ...

Astronomer Avi Loeb argued that other objects like interstellar visitor 3I/ATLAS could be useful for reaching out to aliens, if they exist.

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

Astronomers thought they had seen the "first hints of life on an alien world" this year, but they disappeared under closer ...

Avi Loeb says interstellar objects such as 3I/ATLAS could carry time capsules into deep space faster than spacecraft built with 1970s technology ...

Scientists suggest the first alien signal we detect could be a desperate cry for help from a fading civilization.