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.

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

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 Tsuchinshan-ATLAS will sweep around the sun on Sept. 27 to make a brief foray into the morning sky. Will it be a bright naked-eye object with a significant tail? Here's where and when you ...

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) ...

PASS IT ON! Comet Tsuchinshan-ATLAS has an 80,000 year orbit & it's now approaching its closest pass to Earth. It will get higher in the early evening sky through October 21st.

Comet Tsuchinchan-ATLAS (C/2023 A3) was first discovered at the Purple Mountain Observatory's XuYi Station in China on Jan. 9, 2023, then lost and discovered a second time 44 days later at the ...

“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.