The brief, bright appearance of Comet C/2025 A6 (Lemmon) is rapidly drawing to a close, giving stargazers a final, narrow window to observe the icy object before it retreats. Having made its closest ...

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 ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. Comet C/2025 A6 (Lemmon) with a glowing green coma and ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. Comet C/2025 A6 Lemmon on Oct. 11, 2025, as imaged by ...

Discovered Jan. 3, 2025, by the 60-inch telescope at the Mount Lemmon Survey near Tucson, Arizona, Comet C/2025 A6 (Lemmon) put on a spectacular show this fall. Plus, the comet had a surprise for ...

For skywatchers, scientists and even the astronauts on the International Space Station (ISS), the skies have recently been very active. The sun has released its largest eruptions of 2025, sparking a ...

Comets of this type aren't everyday sightings. The opportunity to observe objects that might have orbital periods measured in thousands of years is fleeting. So when Comet Lemmon recently appeared in ...

Comet C/2025 A6 (Comet Lemmon) made a striking appearance in 2025, becoming visible to the naked eye and exceeding astronomers' expectations for brightness. A dramatic image captured from Hawaii's ...