A Sunquake


The Sun has quakes—earthquake-like waves tha ripple through it. This is a movie of a sunquake on 30 July, 2011. The left frame shows the active region of a solar flare as seen in visible light (amber) as well as in extreme ultraviolet (red). The right frame shows the ripples on Sun’s outlying surface for up to 42 minutes after the onset of the flare, which is marked by the label “IP” for impulsive flare on the time scale.
Video Credit: NASA

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