The Orionid meteor shower peaks during a new moon, Comet Lemmon gets closest to Earth and a crescent moon slides past Mercury and Mars.

Comets Lemmon (C/2025 A6) and SWAN (C/2025 R2) are becoming visible just as the annual Orionid meteor shower peaks and Northern Lights are predicted. Here's where to go.

The Orionid meteor shower peaks Oct. 21-22 with up to 20 meteors per hour. Comet Lemmon and Comet SWAN R2 may also glow green after sunset, making this a rare skywatch.

The Orionid meteor shower peaks during a new moon, Comet Lemmon gets closest to Earth and a crescent moon slides past Mercury and Mars.