A glowing green comet is captivating skywatchers across the Northern Hemisphere. Comet C/2025 F2 (SWAN) was first spotted by amateur astronomer Michael Mattiazzo on March 29, 2025. He discovered it while looking through images from the Solar Wind Anisotropies camera aboard NASA's Solar Heliospheric Observatory. Since then, the comet has been seen multiple times with the help of telescopes.