Scientists studying 3I/ATLAS have spotted unusually slow gas around the interstellar comet, offering fresh clues about its ...

Gas leaving the interstellar comet 3I/ATLAS moves at roughly half the speed of gas coming off Solar System comets at the same ...

A mysterious comet named 3I/ATLAS, spotted in July 2025 streaking through our Solar System from deep space, is likely not an 'alien spaceship' but a visitor from the main disc of the Milky Way, ...

More than tenfold: That is the reported deuterium difference between water in interstellar comet 3I/ATLAS and water measured ...

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 ...

I/ATLAS interstellar comet, first photographed from Mars orbit in October 2025, carries water ice with deuterium levels more ...

Benevolent interloper or interstellar poison pill? With 3I/ATLAS set to fly by Earth in two weeks, Harvard professor Avi Loeb is debating whether our interstellar visitor is friend or foe — an answer ...

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 ...

NASA’s Europa Clipper spacecraft has captured images of interstellar comet 3I/ATLAS as the object — perhaps the oldest ever seen by astronomers — whizzes through the inner solar system. On Nov. 6, ...

Add Popular Science (opens in a new tab) More information Adding us as a Preferred Source in Google by using this link indicates that you would like to see more of our content in Google News results.

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 ...