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What is a solar flare4/2/2024 in 2011.Īfter "hibernating for four or five years, not doing much of anything," the sun began waking up about a year ago. Space Weather Prediction Center in Boulder, Colorado, said \at a meeting of the American Association for the Advancement of Science in Washington, D.C. "The sun has an activity cycle, much like hurricane season," Tom Bogdan, director of the U.S. But, since the sun hasn't yet reached peak activity for this solar cycle, this week's outburst may be only a taste of flares to come. (Related: "Biggest Solar Storm in Eight Years Now Pummeling Earth.")Īs solar storms go, the two March 6 solar flares associated with Thursday's geomagnetic storm around Earth may not compare to the flares behind the 1859 storm. If a similar sun storm were to occur in the current day-as it well could-modern life could come to a standstill, they add. The storm expected Thursday, though, won't hold a candle to an 1859 space-weather event, scientists say-and it's a good thing too. But the potentially "severe geomagnetic storm," in NASA's words, could disrupt power grids, radio communications, and GPS as well as spark dazzling auroras. A powerful sun storm-associated with the second biggest solar flare of the current 11-year sun cycle-is now hitting Earth, so far with few consequences.
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