Comet 3I/ATLAS has arrived in the inner solar system behaving as if the usual rules of comet physics were optional. Instead of trailing a neat plume of dust away from the Sun, it has grown a striking ...

The interstellar visitor 3I/ATLAS has displayed behavior never before seen in a comet. In August, the Two-Meter Twin Telescope in the Canary Islands captured an image showing a faint jet extending ...

All sorts of crazy things have been suggested regarding 3I/ATLAS, the third known interstellar object that we've discovered. Some are simply conspiracy theories about it being an alien spacecraft, ...

3I/ATLAS may have moved away from Earth as it makes its way out of the solar system, but this interstellar intruder continues to delight and surprise astronomers. When you purchase through links on ...

Alfredo has a PhD in Astrophysics and a Master's in Quantum Fields and Fundamental Forces from Imperial College London. Alfredo has a PhD in Astrophysics and a Master's in Quantum Fields and ...

A new image of comet 3I/ATLAS has revealed that the interstellar visitor is glowing green and hiding its tail, but that doesn't mean there's anything wrong with it. Qicheng Zhang, a researcher at the ...

The ion tail appeared as Comet C/2025 R3 PanSTARRS was about 45 million miles from Earth (72 million kilometers) during its closest approach. When you purchase through links on our site, we may earn ...

Editor’s note: Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. (CNN) — The Hubble Space Telescope and ...