Aurora Borealis May 11 2024. The biggest geomagnetic storm in two decades, sparked by solar flares, caused the aurora borealis to appear around stretches of the northern hemisphere where they rarely reach. The last solar minimum, when the sun’s activity was at its lowest in the cycle, occurred in december 2019, with the space weather predictions center (swpc) now.
The aurora borealis, also known as the northern lights, is visible over ann arbor, mich., early saturday, may 11, 2024. The aurora australis, also known as the southern lights, glow on the horizon over waters of lake ellesmere on the outskirts of christchurch on may 11, 2024.