This collage of solar images from NASA's Solar Dynamics Observatory (SDO) shows how observations of the sun in different wavelengths helps highlight different aspects of the sun's surface and atmosphere. (The collage also includes images from other SDO instruments that display magnetic and Doppler information.) Credit: NASA/SDO/Goddard Space Flight Center...
Posted on NASA website: 22nd January 2013

Link: NASA - Sun Primer: Why NASA Scientists Observe the Sun in Different Wavelengths