“ناسا”: الشمس تبتسم

Say cheese! 📸

Today, NASA’s Solar Dynamics Observatory caught the Sun "smiling." Seen in ultraviolet light, these dark patches on the Sun are known as coronal holes and are regions where fast solar wind gushes out into space. pic.twitter.com/hVRXaN7Z31

— NASA Sun & Space (@NASASun) October 26, 2022