The third known visitor from beyond the solar system is on its way out, retracing the path that brought it past the Sun.

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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 ...

Discovered on July 1, 2025, 3I/ATLAS is only the third interstellar object ever detected entering our solar system. Although Juice was launched in April 2023 primarily to investigate Jupiter’s icy ...

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 ...

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 ...

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 ...

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 ...

There's been a lot of hype and rumours about alien comet 3I/ATLAS lately. So, where is it now, what did it look like when it passed Mars and through its closest distance to the Sun, when will it ...

Does 3I/ATLAS have interstellar headlights? Harvard scientist Avi Loeb speculated that NASA’s recently released photos of 3I/ATLAS could potentially point to its artificial origins — and even wondered ...

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 ...