Clues to the Skies in Ancient Texts (IMAGE) Kyoto University Caption Scouring classical Japanese and Chinese literature -- together with tree ring data -- reveals new insights into auroras and other celestial phenomena of the past. Credit Kyoto University/NASA/TNM 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.