Comet Lemmon — C/2025 A6 (Lemmon) — and Comet SWAN — C/2025 R2 (SWAN) — are the first comets visible in binoculars since Comet Tsuchinshan-ATLAS in October 2024.
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This weekend offers the last best chance to see the two green comets before they’re lost in a brightening moon. On Saturday, Oct. 25, Comet Lemmon (C/2025 A6) continues westward, entering the constellation Serpens in the northwestern sky, whi... [2877 chars]