A long-tailed comet named C/2025 R2 (SWAN) was first spotted near the sun on 12 September. NASA’s Solar Dynamics Observatory ...
It could mean two bright comets will be visible in the night sky at the same time, on the peak night of a meteor shower. Comet C/2025 R2 (SWAN), or SWAN R2 for short, was discovered on Sept. 12 by ...