Discover the secrets of 3I/ATLAS, a 7-billion-year-old interstellar comet making its closest approach to Earth on Dec 19.

Astronomers studying the interstellar object known as 3I/ATLAS say new observations from the Gemini North Telescope in Hawaii ...

While NASA's James Webb Telescope and other instruments have already spotted abundant water vapor, carbon monoxide and carbon ...

It’s also not because the object poses any threat to Earth. In fact, 3I/Atlas will never pass closer than about 1.8 times the Earth’s distance from the sun. The real reason is rarity. 3I/Atlas is only ...

The space object, which was only recently discovered by scientists, will pass closest to Earth on Friday, December 19. Here's ...

In a cosmic game of hide and seek, our third-ever known visitor from another star system is finally revealing its true ...

David Rankin of the Catalina Sky Survey in Arizona spends nights scanning the solar system for potentially catastrophic space ...

When NASA’s James Webb Space Telescope turned toward interstellar comet 3I/ATLAS in August 2025, astronomers were looking for ...

Hawaii’s Gemini North telescope has captured new images of interstellar comet 3I/ATLAS with a green glow as it remerges from ...

Comet 3I/ATLAS will make its closest approach to Earth at 1 a.m. EST (0600 GMT) on Dec. 19. At that time, it will be about ...

The NASA-funded ATLAS survey telescope in Chile found the comet on July 1. The comet was not visible as it raced behind the ...

Scientists detect ultraviolet signs of water in interstellar comet 3I/ATLAS, using NASA’s Swift telescope to study its activity far from the Sun.