But like with weather on Earth, can we improve predicting when solar flares are coming?A team of scientists from NorthWest Research Associates investigated data from NASA’s Solar Dynamics Observatory and found some new clues for weather prediction in the sun’s upper atmosphere. The identified small signals in the sun’s
that can help pinpoint when regions in the sun are more likely to produce the bursts of light and particles released from the sun during a solar flare.. Most importantly, they discovered that in the regions about to flare, the corona produces flashes “like small sparklers before the big fireworks.” Two images of a solar active region taken by SDO/AIA show extreme-ultraviolet light produced by million-degree-hot coronal gas on the day before the region flared and the day before it stayed quiet and did not flare . The changes in brightness at these two times show different patterns, with patches of intense variation before the flare and mostly gray before the quiet period . CREDITS: NASA/SDO/AIA/Dissauer et al.
Previously, scientists have studied activity in the lower layers of the sun’s atmosphere (specifically the
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