(via NASA - How SDO Sees the Sun)
Someone on G+ had made a neat mosaic image of the sun with each wavelength, but I like the layout of each here.
The Solar Dynamics Observatory, or SDO, sees the Sun in amazing detail at a variety of wavelengths of light, allowing NASA to observe different aspects of the Sun all at once, and the interaction between the various parts of the sun, the photosphere, chromosphere, and corona. It is the successor to SOHO (Solar and Heliospheric Observatory) and STEREO-A/B (Solar and Terrestrial Relations Observatories, one leading Earth in our orbit, one trailing). The new IRIS (Interface Region Imaging Spectrograph) mission will give us more information about the interactions between the photosphere and the corona, the “interface region”.