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A Big Blast

Featured on April 22, 2021

A Sun-watching spacecraft captured this video of a solar flare erupting on April 22. The eruption (below center) sent a torrent of charged particles racing toward Earth. The cloud is expected to reach Earth on April 25. The initial outburst of X-rays and other radiation disrupted some radio communications across parts of the planet, and the cloud of particles could cause bright auroras and other effects. [NASA/SDO]

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A solar flare erupting on April 22, 2021

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Two stars trying to get in sync

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A Big Blast

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