GIANT BUTTERFLY-SHAPED HOLE IN THE SUN’S ATMOSPHERE: A 500,000-km wide coronal hole has opened in the sun’s atmosphere, sending a stream of solar wind toward Earth. It could spark G1–G2 geomagnetic storms and auroras around Sept. 14th, enhanced by the Russell-McPherron effect. Full story @ Spaceweather.com.
Ydun Ritz (2025-09-11)