Superflares on AD Leonis (IMAGE) Kyoto University Caption Observing the stellar flares on AD Leonis 16 light years away. Its lower temperature makes it a prime target to study flares and the more explosive 'superflare' Credit National Astronomical Observatory of Japan 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.