NASA's Solar Dynamics Observatory satellite took this incredible picture of a huge coronal mass ejection that blasted off the sun's eastern limb yesterday. A medium-sized solar flare occurred at the same time, but the energy it released is not aimed toward Earth.
Below, recent Pictures of the Day:
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Rebecca J. Rosen is a senior editor at The Atlantic, where she oversees the Family and Education sections. She was previously an associate editor at The Wilson Quarterly.