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sunspot

Merging Sunspots close up

One core area of Sunspot 1117 emerged, and then edged over and merged with another core area over three days (Oct. 25-27, …

holes-in-the-suns-corona

Holes in the Sun’s Corona

NASA image release 01.11.11 This Solar Dynamics Observatory image of the Sun taken on January 10 in extreme ultraviolet light captures a …