![](http://www.alamy.com/thumbs/6/84A70CA0-112C-4DD6-A25E-EB8168A807D9/HTMK81.jpg)
One of the most spectacular solar flares (upper left) ever recorded spanning more than 588,000 km across the solar surface. NASA photograph.
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Photo credit: © Photo12/Ann Ronan Picture Library / Alamy / Afripics
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Keywords: /, 000, 588, astronomy, flares, km, nasa, photograph., recorded, science, solar, space, spanning, spectacular, surface.