Aurora images captured at midnight on April 10, 2015, in Delta Junction, Alaska.
The aurora were likely connected to a minor to moderate geomagnetic storm that began late on April 9, 2015. The storm was triggered by a coronal mass ejection — a giant cloud of solar material — that erupted from the sun on April 6, according to NOAA’s Space Weather Prediction Center, the U.S. government’s official source for space weather forecasts, alerts, watches and warnings.
Image Courtesy of Sebastian Saarloos