Northern Lights, New Comet & Saturn Shine: Must-See Sky Events on Sept 25–26, 2025
Earth’s magnetic field is unusually sensitive to solar wind near the September equinox, raising the chance of minor auroras at high latitudes, though no major geomagnetic storms are forecast. Saturn is at its brightest of the year after reaching opposition September 21, visible all night. Newly discovered comet C/2025 R2 (SWAN) is now visible in evening skies, best from the Southern Hemisphere. The Moon and Mars appear close together at sunset on September 25.