Astronomers studying the interstellar comet known as 3I/ATLAS have detected a vast and unexpected X-ray halo extending ...

The comet is the third object ever confirmed to have entered our cosmic neighborhood from elsewhere in the galaxy. Space ...

Discovered on July 1 by the NASA-funded ATLAS telescope in Chile, 3I/ATLAS is only the third confirmed visitor from another ...

Before 3I/ATLAS, the only other confirmed interstellar tourists we've seen were the now-famous, cigar-shaped 'Oumuamua' in ...

Scientists have been fascinated by the third interstellar object to ever known to visit our solar system that is revealing ...

A stunning image of interstellar comet 3I/ATLAS reveals a vibrant, segmented plasma halo, a 'luminous plasma blaze' that left Avi Loeb speechless.

Interstellar comet 3I/ATLAS is captured over Egypt’s Black Desert as it returns to view after its solar passage. Learn how the image was taken and how to observe it ...

It is one thing for scientists to discover a cosmic anomaly, but it is another entirely when that anomaly outright defies ...

ESA's Juice spacecraft has captured striking new images of Comet 3I/ATLAS, revealing its active coma and distinct plasma and ...

Is an interstellar comet actually an alien spaceship? A researcher traces how influencers spread such speculation via social ...

We have all the latest images of our interstellar visitor from ESA's Juice, Hubble, NASA's STEREO, and even a photobomb from ...

Comet C/2025 R2 (SWAN)'s backdrop is dominated by the Eagle Nebula — a vast cosmic structure of dust and hydrogen-rich gas ...