Sunspot surprise

From SpaceWeather.com:

In a span of only 24 hours, sunspot 826 has grown from a barely-visible speck into a Saturn-sized active region, and it is still growing. This large sunspot is crackling with low-level solar flares and may soon pose a threat for a major eruption. Readers who own a safely-filtered solar telescope will want to monitor this sunspot; it is changing by the hour. Or visit http://spaceweather.com to view up-to-date images and movies.

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