Auroral substorm creates green sky over Fairbanks, Alaska

A massive auroral substorm lit up the sky over Fairbanks, Alaska, on March 16, creating bright green hues just before St. Patrick's Day. The display was recorded by Vincent Ledvina, who described it as one of the most intense he has seen. The aurora began strong after sunset, with a bright band stretching south. It then erupted into a vibrant display, with large blobs of light moving from east to west, delighting onlookers. Witnesses celebrated the event, expressing their joy as they watched the stunning natural phenomenon on a frozen lake.