
Large cluster of sunspots that can cause strong solar flares and affect power grids detected by NASA
Fox News
A massive grouping of sunspots called AR3576 that could cause strong solar flares, affecting radio communications and power grids, has been detected by NASA.
In fact, NASA captured a massive solar flare on Friday at its Solar Dynamics Observatory.
And in December, the largest solar flare in six years — that caused problems with airplane radio communications — occurred, sending a burst of radiation hurtling toward Earth.
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