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Credit: Solar Dynamics Observatory, NASA.
Monday, April 27, 2015: A group of active regions on the sun came into view, creating a number of entwined looping arches on Apr. 11-15, 2015, as seen…Read More »





by the Solar Dynamics Observatory. The loops, here visible when viewed in a wavelength of extreme ultraviolet light, consist of charged particles tracing magnetic field lines emanating from active regions. Such regions can potentially produce significant solar storms.

— Tom Chao    Less «
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