US Edition
Meteors From Halley’s Comet Will Light up Dark Skies This Month
Comets Swan and Lemon will not return for 650 and 1,300 years respectively, offering a rare viewing opportunity in October 2025, experts say.
- This month, two bright comets—C/2025 R2 and C/2025 A6 —are greenish-hued and visible from the Northern Hemisphere as they pass through the inner solar system.
- Using solar-observing instruments and ground surveys, researchers detected C/2025 R2 by Vladimir Bezugly via the SWAN instrument and C/2025 A6 by Mount Lemmon Survey.
- On Oct. 20, SWAN will approach within 24 million miles, and on Oct. 21, Lemmon within 55 million miles, brightening from magnitude +21.5 to +5.7.
- To spot the comets, observers should use binoculars or a small telescope and pick dark, low light pollution sites; look roughly 90 minutes after sunset for SWAN, while Lemmon shifts into the evening sky through the end of October.
- For longer-term context, astronomers say SWAN and Lemmon won’t return for 650 to 700 years and 1,300 years, while the Orionid meteor shower peaks on the night of October 20 to 21 with roughly 10 to 20 meteors per hour.
21 Articles
21 Articles
In October, a cosmic visitor passes by the Earth: the comet C/2025 R2, nickname SWAN25B, causes a stir and a rare spectacle in the night sky. As you can observe the comet, you can find out here.
By Ashley Strickland, CNN Two newly discovered comets streaked across the sky during their closest approach to Earth this month. Comets are made of ice, frozen gases and rock, and as they travel by stars like the sun, their heat causes them to release gas and dust, creating their characteristic tails. Researchers spotted comet C/2025 A6 Lemmon on January 3, while C/2025 R2 SWAN was first spotted on September 10 during its close approach to the s…
By Ashley Strickland, CNN Two newly discovered comets streaked across the sky during their closest approach to Earth this month. Comets are made of ice, frozen gases and rock, and as they travel by stars like the sun, their heat causes them to release gas and dust, creating their characteristic tails. Researchers spotted comet C/2025 A6 Lemmon on January 3, while C/2025 R2 SWAN was first spotted on September 10 during its close approach to the s…
NBC Dallas-Fort Worth
NBC NewsTwo greenish comets are streaking across the night sky this month
The comets, named C/2025 A6 (Lemmon) and C/2025 R2 (SWAN), are visible from the Northern Hemisphere as their orbits take them through the inner solar system.
Coverage Details
Bias Distribution
- 84% of the sources are Center
Factuality
To view factuality data please Upgrade to Premium
