M6.6-class Flare from June 22, 2015 (IMAGE) NASA/Goddard Space Flight Center Caption SDO captured this image of the mid-level flare, an M6.6-class, on June 22, 2015. Credit NASA/SDO Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.