A Harvard scientist has suggested that our Solar System may be far more crowded with interstellar objects than anyone realized.

Harvard astrophysicist Avi Loeb claims humanity missed a historic chance to find alien life on interstellar object 3I/ATLAS, warning it may have been a spacecraft on a seeding mission.

Scientists found new evidence (or lack thereof) disproving the conspiracy theory that interstellar comet 3I/ATLAS is alien ...

A mysterious visitor from the depths of interstellar space has just challenged our understanding of the cosmos. It's not ...

Stunning new photos show the pieces of the "other ATLAS," C/2025 K1, breaking apart in space after the golden comet suddenly exploded earlier this month.

January brought a wide range of thoughtful science conversations featuring researchers from the SETI Institute, spanning everything from hands-on planetary defense with citizen scientists to careful ...

NASA observes interstellar comet 3I/ATLAS unexpectedly flaring as it leaves the solar system, revealing water vapour and ...

Astronomers found no radio signals from the comet that would suggest it is an extraterrestrial spacecraft. 3I/ATLAS was confirmed as the third known object to enter our solar system from interstellar ...

This will be your best chance to see 3I/ATLAS in the night sky. Never-before-seen images of 3I/ATLAS capture the comet's ghostly beauty. Sorry to burst your bubble. The comet has reached ...