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

Interstellar visitor 3I/ATLAS has returned to Hubble’s field of view, and the fresh images are forcing astronomers to rethink ...

Then there was the September discovery of C/2025 R2 (SWAN), a comet so bright that even when it was near the moon on ...

The emission of X-rays is usually the domain of the energetic events of the universe: hot stars, supermassive black holes, ...

The debate over the interstellar object 3I/ATLAS escalated sharply this week as a scientist publicly accused amateur ...

Harvard physicist Avi Loeb says the 3I/ATLAS anomalies could hint at alien technology, a possibility with major implications for humanity ...

Witness the breathtaking images of the interstellar comet 3I/ATLAS captured by NASA's Hubble Space Telescope and ESA's JUICE orbiter.

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

An interstellar comet making a brief passage through the solar system has triggered one of the largest coordinated astronomical observation efforts in recent memory. Comet 3I/ATLAS, only the third ...

NASA reveals the true, bizarre reason for the 3I/ATLAS comet's 16.16-hour pulse. Scientists link the interstellar object's ...

The mysterious interstellar object 3I/ATLAS may be seeding the worlds of this solar system with the early stages of life, new ...

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