NASA’s Solar Dynamics Observatory (SDO) images of filament on the Sun are shown here in various wavelengths of light on August 31, 2012. Starting from the upper left and going clockwise they ... more 
NASA’s Solar Dynamics Observatory (SDO) images of filament on the Sun are shown here in various wavelengths of light on August 31, 2012. Starting from the upper left and going clockwise they represent light in the: 335, 171, 304 and 131 Angstrom wavelengths. Since each wavelength of light generally corresponds to solar material at a particular temperature, scientists can compare images like this to observe how the material moves during an eruption. REUTERS/NASA/SDO/AIA/GSFC/Handout less 
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Mail Today | Photo by NASA
Fri 7 Sep, 2012 10:30 AM IST