Last updated on April 16, 2014 at 1:21 EDT
The March Towards Max
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The March Towards Max

November 2, 2012
These six images from SDO, chosen to show a representative image about every six months, track the rising level of solar activity since the mission first began to produce consistent images in May, 2010. The period of solar maximum is expected in 2013. The images were taken in the 171 Angstrom wavelength of extreme ultraviolet light.