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Scientists Explain Mysterious Finger-like Features in Solar Flares

  • Still image of several supra-arcade downflows, also described as "dark, finger-like features," occurring in a solar flare. The downflows appear directly above the bright flare arcade. This solar flare occurred on June 18, 2015.

    Still image of several supra-arcade downflows, also described as "dark, finger-like features," occurring in a solar flare. The downflows appear directly above the bright flare arcade. This solar flare occurred on June 18, 2015.

    NASA SDO

    Low Resolution Image

  • Still image of several supra-arcade downflows, also described as "dark, finger-like features," occurring in a solar flare. The downflows appear directly above the bright flare arcade. This solar flare occurred on June 18, 2015.
    Still image of several supra-arcade downflows, also described as "dark, finger-like features," occurring in a solar flare. The downflows appear directly above the bright flare arcade. This solar flare occurred on June 18, 2015.
    NASA SDO

    Low Resolution Image

  • SDO solar flare

    The Atmospheric Imaging Assembly (AIA) onboard NASA's Solar Dynamics Observatory captures a supra-arcade downflow within a solar flare that occurred on June 18, 2015.

    NASA SDO

    Animation

  • video still image

    The Atmospheric Imaging Assembly (AIA) onboard NASA's Solar Dynamics Observatory captures a supra-arcade downflow within a solar flare that occurred on Nov. 29, 2020.

    NASA SDO/Sijie Yu

    Animation

  • Video still image of solar flare

    The Atmospheric Imaging Assembly (AIA) onboard NASA’s Solar Dynamics Observatory captures a supra-arcade downflow within a solar flare that occurred on Nov. 29, 2020.

    NASA SDO

    Animation