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

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

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

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

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

With new technologies come new opportunities. And that is especially true in astronomy—with every new advanced telescope, we ...

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, ...

Exactly where the comet 3I/ATLAS came from within the Milky Way remains a mystery.

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

Project Hail Mary, Solaris, and The Hitchhiker's Guide to the Galaxy are all among the very best sci-fi books set in space.