Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. Where is comet Tsuchinshan-ATLAS tonight? It’s not too late ...

A stray comet from another star swings past Earth this week in one last hurrah before racing back toward interstellar space.

A rare, green-glowing comet will make its closest approach to Earth next week — and it won’t return for more than a thousand years. Comet C/2025 A6 (Lemmon), described by National Geographic as “this ...

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

While online conspiracies swirl, comet 3I/ATLAS made a close pass by Earth on Dec. 19, giving astronomers a rare glimpse of a ...

PORTLAND, Ore. (KATU) — Space, it’s full of surprises. An object, discovered at the beginning of the year, was first thought to be an asteroid. But then it grew a tail. Astronomers with the Mount ...

A rare visitor from deep space has swept through the inner solar system, offering astronomers a fleeting look at material ...

A new image shows the growing tail of a comet from another star system streaking across our solar system. The image of comet 3I/ATLAS was captured on Aug. 27 using one of the telescopes at the ...

A stray comet from another star is swinging past Earth. Discovered over the summer, the comet known as 3I/Atlas will pass ...

A recently discovered comet that some stargazers had hoped to see during Halloween week has disintegrated before the day of ghosts and ghouls. NASA confirmed Tuesday its sun-observing spacecraft ...

A comet, dubbed C/2025 K1 (ATLAS), spectacularly broke apart into three huge chunks — and anybody with an eight-inch telescope or bigger can catch the resulting fireworks show for the next several ...

The comet is the third object ever confirmed to have entered our cosmic neighborhood from elsewhere in the galaxy. Space telescopes and orbiters have been documenting the rare visit. A mysterious ...