Two comets are set to light up the night sky, one of which will not be seen again for over 1,000 years.

C/2025 R2 (SWAN) and C/2025 A6 (Lemmon) are expected to be visible across the country this month, weather permitting. They are predicted to make their closest approach on Tuesday evening, Oct. 21. Both comets should be visible in the western and southern skies starting about 45 minutes after sunset and continuing into the night, according to Forbes .

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