Extreme Ultraviolet Sun Imaged by SOHO (IMAGE) NASA/Goddard Space Flight Center Caption This is the extreme ultraviolet sun imaged by the Solar and Heliospheric Observatory over one complete solar cycle. The sun changes more at EUV wavelengths than it does in any other part of the electromagnetic spectrum. Credit NASA/SOHO 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.