New telescope images show interstellar comet 3I/ATLAS brightening and turning green after solar heating, raising questions ...

The interstellar comet 3I/ATLAS reaches its closest point to Earth on Dec. 19, allowing close study with no threat to the ...

NASA’s Hubble Telescope photographed the comet on November 30. At that time, the comet was still very far — about 178 million ...

It was back in July of this year that the Night Sky column first commented on the appearance of a strange object that had entered our solar ...

I/ATLAS attracted attention when it was confirmed to be only the third body originating from another star system.

Astronomers have followed 3I/ATLAS since its discovery on July 1. Hubble photographed it on July 21 from 277 million miles ...

Learn what the first maps of the sun's atmospheric boundary reveal about solar wind and its escape into space.

New images taken with the Gemini North telescope in Hawaii confirm that the interstellar comet 3I/ATLAS has gotten brighter ...

Harvard's Avi Loeb argues the 3I/ATLAS anti-tail defies solar physics, suggesting the interstellar visitor is not a comet but ...

The cometary cameraman was not the only one to snap the celestial snowball of late. On November 30, NASA’s Hubble Space Telescope captured a deeper look at interstellar comet 3I/ATLAS, with its Wide ...

A strong, 6.7-magnitude earthquake struck in the North Pacific Ocean on Friday, according to the United States Geological Survey. The temblor happened at 11:44 a.m. Japan time about 71 miles northeast ...

A mysterious interstellar comet known as 3I/ATLAS is about to make its closest approach to Earth in December 2025. Here's ...