Sun Emitted a Solar Flare on Dec. 4, 2014 (IMAGE) NASA/Goddard Space Flight Center Caption The sun emitted a solar flare on Dec. 4, 2014, seen as the flash of light in this image from NASA's Solar Dynamics Observatory. The image blends two wavelengths of extreme ultraviolet light -- 131 and 171 Angstroms -- which are typically colored in teal and gold, respectively. Credit NASA/SDO 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.