
Double comet alert! Comets Lemmon and SWAN will reach their brightest this week — here's how to spot them
LiveScience
14:00
Comet Lemmon (C/2025 A6) makes its closest approach to Earth on Oct. 21, about 24 hours after the fainter Comet SWAN (C/2025 R2) does the same. Here's how, where and when to see them both.