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

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

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

Know when Comet 3I/ATLAS makes its closest approach to Earth and how to watch this rare event. Learn why astronomers are excited about this rare comet event and what makes this comet special.

I/ATLAS is definitely a comet, not an alien spacecraft, but it is only the third confirmed interstellar object detected in ...

It's a bird! It's a plane! No, it's comet SWAN25F! Point your eyes to the sky because a newly-discovered comet is currently whizzing throughout our solar system and visible to stargazers hoping to ...

Ghosts won't be the only things flying through the sky this Halloween season! Skywatchers are in for an extraterrestrial treat in the days leading up to Oct. 31 because of a rare comet that is ...

Astronomers worldwide are gearing up for a year of spectacular comet sightings in 2026. Multiple comets will be observable through binoculars and small telescopes. Some, like C/2025 R3 PanSTARRS, may ...

Comet C/2024 S1 (ATLAS) is no more. Now, thanks to the Solar and Heliospheric Observatory (SOHO), a spacecraft jointly operated by NASA and the European Space Agency, we know for sure how and when ...

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

Watch Comet C/2024 S1 (ATLAS) make a death dive into the sun in this eerie footage from the Solar and Heliospheric Observatory spacecraft. When you purchase through links on our site, we may earn an ...

The human mind may find it difficult to conceptualize a cosmic cloud so colossal it surrounds the Sun and eight planets as it extends trillions of miles into deep space. The spherical shell known as ...