Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. Comets SWAN and Lemmon look set to offer a rare chance to ...

October is shaping up to be a great month for skywatchers. Two comets blazing through our solar system—C/2025 R2 (SWAN) and C/2025 A6 (Lemmon)—will become more visible to the naked eye in a few weeks.

The two green comets continue to shine brightly in twilight each evening for lucky skywatchers with binoculars in the Northern Hemisphere. For observers on Friday, Oct. 24, the bright Comet Lemmon ...

This year, the October sky could offer a rare spectacle: two comets are expected to become visible simultaneously. The first, discovered recently, follows an extremely long orbit. The second, detected ...

A new comet was discovered last month. Now, as we go through this month, the comet may become easier to view. The new comet was discovered by a sky imaging instrument called SWAN. SWAN stands for ...

Two greenish-hued comets are swinging through the inner solar system this fall, offering a rare chance to spot them in the coming weeks. The comets, named C/2025 A6 (Lemmon) and C/2025 R2 (SWAN), are ...

With Halloween decorations, such as Home Depot's 10-foot skeletons, becoming as popular as Christmas decorations, October is a great time to see all kinds of spooky and cool light shows in your ...

TOLEDO, Ohio — Skywatchers have a rare cosmic visitor to look forward to this month. Comet C/2025 R2 (SWAN), first spotted in September by NASA’s Solar Wind Anisotropies instrument aboard the SOHO ...

The newest comet to create a buzz among sky watchers was spotted recently, and it will be coming closer to Earth in October - possibly giving us a better look at this once-in-a-lifetime visitor from ...