Antimatter in Thunderstorms? (image) Kyoto University Share Print E-Mail Caption A Kyoto University-based team has unraveled the mystery of gamma-ray emission cascades caused by lightning strikes. Credit Kyoto University/Teruaki Enoto Usage Restrictions None Share Print E-Mail 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.