Synopsis
Comets such as C/2025 R2 (SWAN) are ancient remnants of the early solar system, made of ice, rock, and organic compounds. As they near the Sun, they offer rare glimpses into the primordial materials that helped form the planets billions of y…
Comet C/2025 R2 SWAN to pass Earth next week: How to watch and see if it’s visible to the naked eye

