The livestream will now begin Friday at 11 p.m. EST, Dec. 19 (0400 GMT on Dec. 20), weather permitting, after rain prevented ...

For those of you planning on catching a glimpse of the exocomet, besides the weather, the luminosity of 3I/ATLAS is a bummer.

Interstellar comet 3I/ATLAS will fly by our planet at a safe distance of 1.8 astronomical units (roughly 167 million miles or ...

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

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

3I/ATLAS, the third-ever interstellar object to bump into the solar system since 1I/Oumuamua (2017) and 2I/Borisov (2019), ...

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 ...

On December 19, the interstellar comet 3I/ATLAS will make its closest approach to Earth with NASA saying it poses no danger ...

Comet 3I/ATLAS, a rare interstellar visitor, is visible this week as it departs the solar system, with some public events ...

For the third time in human history, we are witnessing an object that was forged around a distant, unknown star, only to be cast out into the interstellar wilderness for billions of years. As this ...

I/ATLAS has passed its closest point to Earth, meaning we will soon lose sight of it for good. Some scientists want to send a spacecraft to chase down the alien comet — or the next interstellar object ...