Major, X-class solar flare erupts on sun, second in two days

September 10, 2014 9:49 PM

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An intense, X-class solar flare occurred on Wednesday afternoon, originating from Active Region 2158. This is the second major flare in two days from AR2158, and could provide an intense aurora show Friday night if the associated coronal mass ejection is earth-bound. (NASA)

The sun has been active this week as two large solar flares have aurora photographers reaching for their cameras.

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