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

Comet 3I/ATLAS is a rare visitor passing briefly through our solar system. Here’s how to find it in the night sky—and what ...

The interstellar comet 3I/ATLAS made its closest approach to Earth today (Dec. 19, 2025). Here's the latest news you need to ...

With 3I/ATLAS slated to make its Earth tour in two days, amateur photographers and astronomers alike are scrambling to catch ...

Comets are celestial bodies made up of ice, rock, and dust, and they typically range in size from a tens of feet to several miles in length. In the case of 3I/ATLAS, scientists estimate its diameter ...

A rare interstellar object is hurtling toward the sun and, despite viral claims, experts say it's just a normal comet, although it's showing some unexpected behavior. 3I/Atlas marks the third ...

Interstellar comet 3I/ATLAS will make its closest approach to Earth on Friday. New X-ray images could shed light on its composition.

Today is one astronomers, stargazers and alien conspiracy theorists have been waiting for: interstellar comet 3I/ATLAS is as ...