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An X-Class solar flare — the most dangerous kind — erupted from the sun toward Earth Wednesday from Active Region 2158.

It’s still unclear whether and to what extent the flare will affect power grids, satellites, or radio transmissions on Earth. But whether it wreaks havoc or not, it will be stunning to behold.

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But either way, on Thursday we will be able to see the flare in action, live on the Internet. The Slooh Space Telescope will be transmitting video of the sun from Prescott, Arizona, beginning on Thursday afternoon at 1:00 p.m. EDT.

“What solar experts fear most,” Slooh astronomer Bob Berman said in a statement, “is a recurrence of the huge Coronal Mass Ejection events of 1921 and 1859.”