A Coronal Mass Ejection (video) NASA/Goddard Space Flight Center Loading video... Caption A coronal mass ejection burst off the side of the sun on May 9, 2014. The giant sheet of solar material erupting was the first CME seen by NASA's Interface Region Imaging Spectrograph, or IRIS. The field of view seen here is about five Earths wide and about seven-and-a-half Earths tall. Credit NASA/LMSAL/IRIS/SDO/Goddard Usage Restrictions None 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.