The highly anticipated moment for skywatchers is finally approaching as interstellar comet 3I/ATLAS prepares for its closest pass by Earth this December. The mysterious object famous for both ...

Remember 3I/ATLAS? Yes, the interstellar comet that made plenty of headlines in 2025 is still romping through our solar system. But it may not be around much longer. The otherworldly visitor to ...

The interstellar object "3I/ATLAS," which flew into the solar system in 2025 and is now quietly moving away, has been the ...

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 ...

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 ...

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 ...

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The mysterious interstellar object known as 3I/ATLAS may not be an alien, or even an alien artifact, as was once popularly theorized. That doesn’t mean we shouldn’t double and triple-check just to be ...

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, ...

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 ...