In a rare doublecosmic treat and once-in-a-millennium visit from an icy green comet, stargazers can look to the night sky through October 2025 to view Comet Lemmon and Comet SWAN, which will be ...

A newly discovered comet is about to make its closest pass to Earth on Tuesday night. It should be visible over the Central Coast before it disappears — and won’t be seen again for more than a ...

Stargazers eager to catch a rare green comet in the sky tonight, Friday, Oct. 24, 2025, are in for a double cosmic treat as Comet Lemmon and Comet SWAN are close to Earth and visible in the sky this ...

Two comets are converging in the night sky this month You can see an online livestream of the comets via the Virtual Telescope Project later this week The comets are called C/2025 A4 (Lemmon), and ...

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 ...