Record-breaking X6.3 solar flare detected by NASA's Solar Dynamics Observatory on Feb 22, originating from giant sunspot AR 3590.
Massive solar flare explodes from the Sun, reveals NASA's Solar
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Sun unleashes at least eight solar flares towards Earth
The Strongest Solar Flare of the Current Cycle
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Solar Flares – Astrology King
We Just had the Strongest Solar Flare in the Current Solar Cycle
2012: No Killer Solar Flare - Universe Today
Sun unleashes most powerful flare in current cycle – This Week in
Powerful solar flare unleashes colossal plasma plume, sparks radio