RAVAN in the Sun (IMAGE) NASA/Goddard Space Flight Center Caption On Aug. 21, 2017, RAVAN observed the sun during the solar eclipse. Here, an artistic rendering depicts RAVAN's view just prior to the event. Credit Photo by NASA 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.