2025 has seen stargazers look on in awe as a trio of magnificent comets barreled headlong into the inner solar system to survive a close brush with the sun, only to emerge to race back out into the ...

Comet 10P/Tempel 2 is now visible in the south as soon as it gets dark from anywhere in the Northern Hemisphere, but only ...

A rare celestial visitor is slipping into the dawn sky, and it hasn't passed through our corner of the solar system since prehistoric times. Comet C/2025 R3 (Pan-STARRS) — discovered on Sept. 7, 2025, ...

Dark comet 1998 SH2 spent 27 years cataloged as a routine asteroid before outgassing steered it invisibly off course, ...

Scientists used the Gemini North telescope in Hawaii to obtain images of the third-ever detected interstellar object, Comet 3I/ATLAS, on Nov. 26, 2025. Credit: NSF NOIRLab In the spirit of the season, ...

Now is your chance to see a comet that takes more than five years to return to Earth's cosmic neighborhood. Here's what to ...

An interstellar comet that blazed past the sun last year could be nearly three times older than our solar system and is unlike anything ever seen before in our cosmic backyard, astronomers said Monday ...

Interstellar comet, 3I/ATLAS, might be one of the oldest celestial bodies ever seen, potentially forming 10 to 12 billion years ago. This ancient visitor, detected in July 2025, could offer ...

Highlights from a cometary trio that captured our imaginations. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.