Comet C/2025 R2 (SWAN) was discovered on Sept. 10 by Ukrainian amateur astronomer Vladimir Bezugly. It has brightened ...

Known as C/2025 A6 (Lemmon), this celestial wanderer is currently in the western sky after sunset, not far from the Big ...

This long-duration comet will make its closest approach to Earth this fall, before disappearing into the outer solar system ...

Comet C/2025 A6 (Lemmon) is this year’s brightest comet visible from Earth—an icy relic from the solar system’s origins that ...

Learn when and where to see Comet Lemmon and Comet SWAN this October as they light up the night sky in a rare double comet ...

Skywatchers can catch a rare glimpse of Comet Lemmon this month, and it won't be back until around the year 3175. Here's how ...

Two bright green comets are streaming through the skies and are visible to skygazers in the Northern Hemisphere. Both hail ...

A rare, green-glowing comet will make its closest approach to Earth next week — and it won’t return for more than a thousand ...

A comet discovered earlier this year, now just bright enough to be visible to the naked eye, is poised to be among the top ...

The comet will make its closest approach to Earth Tuesday, but Monday may be the best evening to see it. Come Monday around ...

Comet Lemmon is now visible with comet SWAN after sunset while also remaining visible before dawn for Northern Hemisphere ...

Comet 2025 C/2025 A6 - known as Comet Lemmon - will become brighter and brighter in Colorado's early evening skies over the ...