The comet might be visible to the naked eye in the daytime next month. For now, observers will need some help spotting it.

The Hubble Space Telescope saw Comet 41P stop spinning completely, and then restart, but in the opposite direction.

Comet C/2025 A6 (Lemmon), captured from the Dark Sky Alqueva Observatory in Portugal on October 2, 2025, glows green as it nears its closest approach to Earth. Here’s how to see this rare green comet ...

A newly discovered comet is rapidly brightening and could become visible from Earth — if it survives an extreme close encounter with the sun on April 4.

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. Comet Lemmon (C/2025 A6) as imaged using a Seestar S30 smart ...

Astronomy enthusiasts have a rare opportunity to witness Comet Lemmon (C/2025 A6) in the night sky this Sunday, October 26, before it disappears for more than a millennium. Alongside it, the dimmer ...