This is a tale as old as time, or at least as old as the space age: a strange object flies into our solar system, telescopes focus, and before the scientific community can confirm the data, the ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. The largest comet ever found has jets of carbon monoxide gas ...

An interstellar comet that originated outside our solar system has just made its closest pass to the sun, brightening dramatically and rapidly as it did so. The reason for the sudden extreme activity ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. A brightening comet is now becoming easier to see — and this ...

An interstellar comet carries water unlike anything in our solar system, revealing a far colder birthplace and clues about planetary systems ...

WASHINGTON, Nov 19 (Reuters) - NASA released fresh images on Wednesday of the interstellar object called 3I/ATLAS that astronomers have determined is a comet probably even older than our solar system, ...

Comet C/2025 R3 is already drawing attention—and offers a rare chance to understand what separates an ordinary comet from a truly “great” one. Comet C/2025 R3 (PanSTARRS) hangs above Bietschhorn in ...