NASA’s Solar Dynamics Observatory Captures Sun Smiling
Smiling Sun, courtesy of NASA/SDO and the AIA, EVE, and HMI science teams According to one of NASA’s Twitter sites, NASA’s Solar Dynamics Observatory recently caught the Sun “smiling.” Viewed in ultraviolet light the coronal holes, dark patches on the Sun, are regions where fast solar wind gushes out into space. The Solar Dynamics Observatory is the first…