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

In July 2025, astronomers spotted something remarkable passing through our Solar System, an object that had not come from ...

A planet with one side permanently roasting and the other frozen in endless darkness might still have a chance of supporting life. Researchers found that heat inside a tidally locked exoplanet could ...

New research suggests that alien radio signals may be transformed by plasma from their home stars — and scientists on Earth could thus be overlooking prime evidence of alien intelligence.

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

Strange interstellar comet speculated to be alien spacecraft is older than Solar System - Scientists say comet represents preserved fragment of ancient planetary system ...

Eventually, we'll launch a mission dedicated solely to studying an interstellar object. When that day comes, which one should ...

Astronomers have sharply revised down the mass of nearby super Earth GJ 3378b, dramatically improving its prospects as a ...

The nature of space, time and the evolution of life on Earth mean it’s unlikely extraterrestrial life has visited our home ...

A mysterious object from another star system is racing through our Solar System, and every major space telescope is watching.