The term "SDO" can refer to several concepts, but one common meaning is "Solar Dynamics Observatory." This is a NASA mission launched in 2010 to study the Sun's behavior and its impact on space weather. The observatory uses advanced instruments to capture high-resolution images of the Sun in various wavelengths, helping scientists understand solar phenomena like solar flares and sunspots. Another meaning of "SDO" is "Service Delivery Organization." This term is often used in business and healthcare contexts to describe an entity that provides services to clients or patients. SDOs focus on improving service efficiency and quality, ensuring that the needs of their target audience are met effectively.