Discovered on July 1, 2025, 3I/ATLAS is only the third interstellar object ever detected entering our solar system. Although ...

3I Atlas has survived its close encounter with the Sun, but according to the transcript, what happened around perihelion only deepened the mystery surrounding this interstellar visitor. The object ...

3I/ATLAS is surrounded by “a complex jet structure,” new images show, sparking fresh speculation that the Manhattan-sized interstellar object could be an artificial alien craft. The images, captured ...

Comet 3I/ATLAS arrived from beyond the Solar System carrying a chemical story unlike anything astronomers had measured before. In the gas around it, they found isotope ratios that do not match the ...

The earliest images of 3I/ATLAS, newly uncovered by Michigan State University, reveal how the interstellar object evolved as it traveled through our solar system—and how other distant solar systems ...

In the latest data from NASA’s Webb and Hubble observations between December 2025 and January 2026, the researchers could ...

Harvard astronomer, Avi Loeb, speculates it could be an artificial alien object. NASA experts maintain that the object appears to be a natural comet with unique variations. Rare interstellar object 3I ...

The ATLAS theories are all over the map. With 3I/ATLAS slated to fly-by Earth tomorrow, theories over its nature have hit a fever pitch. A new study asserts that our interstellar visitor behaves like ...

A comet from another star system is due to make its closest—and final—approach to Earth this week before it continues on its journey back toward interstellar space. Interstellar Comet 3I/ATLAS will ...

Update: Friday, December 19, 8:16 a.m. ET: The Virtual Telescope Project 2.0 has postponed its livestream of 3I/ATLAS’s Earth flyby to Friday, December 19, starting at 11:00 p.m. ET. Original article ...

3I/ATLAS is the third confirmed interstellar object passing through our Solar System It was discovered on July 1, 2025, moving at 137,000 mph near Jupiter's orbit 3I/ATLAS follows a hyperbolic ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. Comet 3I/ATLAS—the third interstellar object ever known to pass through ...