An interstellar comet is set to appear in the skies. A comet named 3I/ATLAS would be closest in its journey to our Sun on October 30, when it will be around 130 million miles from the center of our ...

Interstellar comet 3I/ATLAS is expected to make its closest approach to Earth on December 19. Astronomers are presently tracking the rare visitor from beyond as it passes through our solar system.

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 ...

On the 1st of July 2025, the Asteroid Terrestrial-Impact Last Alert System (ATLAS) in Chile spotted a new comet entering our solar system. This comet was named 3I/ATLAS, as it's only the third ...

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 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 ...

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 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 ...

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 ...