What is Comet C/2025 R2 (SWAN)? Comet C/2025 R2, designated SWAN after its discovery name, is a rejuvenated visitor from the solar system’s icy outskirts. Discovered on September 10, 2025 by a Ukrainian amateur astronomer, Vladimir Bezugly, SWAN has brightened rapidly as it travels toward the Sun. As with many comets, its glow comes from…