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    Solar flare

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    Hubble Space Telescope

    von Hubble Space Telescope

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    This video from the Solar Dynamics Observatory shows a flare on our own star, the Sun. HD 189733b is a little smaller than the Sun, but more active, with more violent flares.

    Credit:
    NASA, Solar Dynamics Observatory

    More information and download-options:
    http://www.spacetelescope.org/videos/heic1209e/