Sunspot AR 3664 Has Grown as Large as the One That Caused the Carrington Event 165 Years Ago
SpaceThe sunspot has erupted with intense M- and X-class flares in just a matter of days, including one with a magnitude of X8.7 on Tuesday.
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Aurora:Sunspot AR 3664 Has Grown as Large as the One That Caused the Carrington Event 165 Years Ago