Severe G4 geomagnetic storm sparks northern lights across US and beyond (photos)By otako_fzbgs4 / June 1, 2025 The speedy solar storm arrived in style, sparking stunning aurora displays as far south as California and New Mexico. Related posts: Catch solar bursts in new citizen science project Sped-up simulation of Hera’s Mars flyby Hera asteroid mission’s Mars flyby Watch live: Images from Hera’s Mars flyby