Butterfly-Shaped Hole in the Sun Could Spark Solar Storms Worldwide This Weekend
A giant butterfly-shaped coronal hole on the Sun is blasting solar wind toward Earth, expected to trigger geomagnetic storm conditions on Sept. 13–14. Forecasts suggest possible G1 to G2 levels, raising chances for auroras across mid- and high-latitudes. Scientists note the equinox effect could intensify activity, offering a prime opportunity for skywatchers to witness dazzling displays.