Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. If you’re yet to see Comet Lemmon (C/2025 A6) and Comet SWAN ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. Comet Lemmon — also called C/2025 A6 (Lemmon) — will on ...

Stargazers are in for a once-in-many-lifetimes opportunity this week as a comet will be visible passing by Earth for the last time for over a millennium. Comet C/2025 A6—also known as “Comet Lemmon”— ...

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 Lemmon Survey in Arizona ...

From the Milky Way to dueling meteor showers, there’s lots in store for California sky watchers this month. July is full of ...

It was early January 2025 when a faint light spot was observed at the Mt. Lemmon Observatory in Arizona. Follow-up observations revealed that the object was a comet visiting from the outer edge of the ...

OK, we’ve all probably taken a few days off from trying to spot Comet C/2025 A6 (Lemmon) because of how much light the Moon was casting in our sky after sunset. Old Luna will still be bright for a ...

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, ...