Astronomers have discovered a new object that originated outside of our Solar System — only the third to be found.

I/ATLAS, earlier known as A11pI3Z, is only the third interstellar visitor to be discovered passing through our corner of the ...

Interstellar object headed towards Mars, but poses no threat to Earth, says head of planetary defence at the ESA.

Update: NASA has confirmed the object is an interstellar comet and says it has been officially named 3I/ATLAS.

Astronomers are scrambling to gather data on a mysterious object that’s currently hurtling through the solar system.

Watch how Comet C/2024 S1 (ATLAS) met its demise after traveling close to the sun. Imagers aboard the Solar and Heliospheric ...

Comet Tsuchinshan-ATLAS will have a close encounter with the sun today (Sept. 27) here's how to make the most of comet viewing opportunities this weekend and beyond.

Comet C/2023 A3, also known as Comet Tsuchinshan-ATLAS, may become the next brilliant comet. The brightnesses of such objects, however, are notoriously difficult to predict.

A view of Comet Tsuchinshan-ATLAS generated using Starry Night Pro 8.0 that shows what it may look like in the western evening sky on Oct. 14, 2024. (Image credit: Starry Night) ...

The coma and long tail of comet Tsuchinshan-ATLAS, also called C/2023 A3 (Tsuchinshan–ATLAS), is currently shining at magnitude +0.5.That's well within the grasp of the human eye. It's likely ...

“Comet of the century” will be visible for first time in 80,000 years. Here’s how to glimpse it Comet Tsuchinshan-Atlas will make a pass close to the Sun throughout late September and October.

Comet Tsuchinshan-ATLAS will have a close encounter with the sun today (Sept. 27) here's how to make the most of comet viewing opportunities this weekend and beyond.