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

Some of the coldest objects currently listed as stars in the Milky Way may not be stars at all. A new study by astrophysicist ...

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

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 ...

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

To date, over 5000 exoplanets have been discovered using telescopes on the ground and in space. Credit: NASA/JPL-Caltech ...

Ever so slightly bigger than Earth, the exoplanet LHS 3844b orbits its parent star, LHS 3844, a red dwarf 48.5 light-years ...

PARIS, France — An interstellar comet that blazed past the Sun last year could be nearly three times older than our Solar System and is unlike anything ever before seen in our cosmic backyard, ...

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

NASA plans to launch the Habitable Worlds Observatory in the 2040s, a mission whose goal is “to image Earth-like planets ...

Based on evidence collected by the James Webb Space Telescope, researchers have found that interstellar comet 3I/ATLAS could ...