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The Sun put on a firework show this weekend, emitting at least one powerful X-class flare and at least one other strong burst of radiation.
Giant sunspot AR3590 is so big, you can see it for yourself
15 signs the sun is gearing up for its explosive peak — the solar maximum
Sun Erupts With Significant Flare - NASA
Sun Fires Off 2 Huge Solar Flares in One-Two Punch
Powerful solar flares produce dramatic spitfire and radio blackout
Sorry your train is late … blame the wrong type of solar flare
Solar storm: Why the next disaster to strike will come from the sun
Earth hit by powerful 'X-1' solar flare, after fears of 'cannibal
Sun blasts huge X2.5-class solar flare and spits plasma - See 4K spacecraft views
1 in 8 Chance of Catastrophic Solar Megastorm by 2020
Flashes on the Sun Could Help Scientists Predict Solar Flares - NASA
Could a solar storm shut down Earth?
First Notable Solar Flare of 2015 - NASA
NOAA: Geostorm Warming as recent solar flares hit Earth •
