Comet 3I/ATLAS arrived from beyond the Solar System carrying a chemical story unlike anything astronomers had measured before ...

JWST detected rising methane emissions from interstellar comet 3I/ATLAS, exposing ancient interior ice and offering new ...

During last year’s brief visit from the comet 3I/ATLAS, astronomers got an extremely rare glimpse into the cosmos beyond our ...

Observational evidence now suggests that the comet “3I/ATLAS,” known as the third interstellar object to visit our Solar ...

Astronomers first spotted Comet 3I/ATLAS in June 2025, and it was later confirmed as an interstellar visitor that originated from outside our solar system. As the comet’s name indicates, it is the ...

Astronomers have revealed new details about the makeup and age of a visiting comet that was born around a distant star. They ...

Observations of the fast-moving interstellar comet with the Very Large Telescope in Chile support similar observations made ...

While 3I/ATLAS is definitely a comet, its composition and age have remained unclear. Now, astronomers have solved these ...

Juice observed 3I/ATLAS during perihelion, when Earth-based telescopes could not. Spectroscopic observations measured water ...

The SETI Institute is the latest to confirm what scientists have long suspected: the interstellar 3I/ATLAS comet is not an ...

The latest interstellar visitor to be discovered in our solar system was born somewhere in the universe that was nothing like our home and, according to a new study, a time long before the solar ...

Astronomers have used the European Southern Observatory's Very Large Telescope (ESO's VLT) to study the composition of ...