Northern Lights, New Comet & Saturn Shine: Must-See Sky Events on Sept 25–26, 2025
Summary Auroras Dance Under Equinox Skies It’s aurora season! The autumnal equinox (September 22) is traditionally a prime time for auroras because of the way Earth’s magnetic field interacts with the solar wind this time of year. Researchers have observed that around the equinoxes, cracks tend to open in Earth’s magnetosphere, allowing even relatively minor solar activity to trigger auroral displays spaceweatherarchive.com spaceweatherarchive.com. This is known as the Russell–McPherron effect – essentially, “even a gentle gust of solar wind can breach our planet’s magnetic defenses” near the equinox spaceweatherarchive.com. Over the past week, the Sun has kept forecasters on their