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    When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

    Solar flare

    The sun unleashed an X-class solar flare — the most powerful type of solar eruption — on Sept. 10, 2014. This image of the Earth-directed flare was taken by NASA's Solar Dynamics Observatory.
    The Active Sun Fired Off a Big Solar Flare: Watch It Live Today

    • Fourth Year of SDO Images
      NASA Sun-Watching Spacecraft Celebrates 4th Birthday with Amazing Video

      By Mike Wall Published 12 February 14

    • The northern lights above a sign marking the edge of the Arctic Circle.
      Northern Lights Fizzle in US

      By Megan Gannon Published 10 January 14

    • This shows an aurora appearing in the night sky at the Kjell Henriksen Observatory in Svalbard, Norway. Taken November 2010.
      Intense Solar Flare May Supercharge Northern Lights

      A solar flare that erupted on the sun this week could intensify the northern lights, and perhaps bring dazzling auroras as far south as Seattle, Chicago and Boston.

      By Megan Gannon Published 9 January 14

    • X1 Solar Flare: Nov. 19, 2013
      Sun Fires Off Powerful Solar Flare (Video)

      By Miriam Kramer Published 19 November 13

    • Sun Fires Off X2.1 Solar Flare on Oct. 25, 2013
      Sun Fires Off Another Monster Solar Flare

      By Mike Wall Published 25 October 13

    • Powerful X1.7-Class Flare - October 25th, 2013
      Sun Erupts With Two Major Solar Flares (Video)

      By Tariq Malik Published 25 October 13

    • solar eruption
      Solar Eruption Could Help Earth Prepare for Technology Melt-Down (Op-Ed)

      Opinion A sobering study published this month in Space Weather warns why we need to get better prepared for disruptive space weather events – particularly coronal mass ejections.

      By Brett Carter Published 16 October 13

      Opinion
    • Hi-Def Coronal Mass Ejection
      Doomsday Fear: Could an EMP Throw World into Chaos?

      An electromagnetic pulse or a bad solar storm could possibly knock out the electrical grid, causing major problems for society.

      By Douglas Main Published 13 August 13

    • SWAP View of Sun 1024
      Sun's Magnetic Field Flip Won't Doom Earth, Scientists Say

      By Mike Wall Published 8 August 13

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