CAPE CANAVERAL, Fla. (AP) – An unusually strong solar storm May 10 – ranked 4 on a scale of 1 to 5 – posed a risk for high-voltage transmission lines for power grids, but not the electrical lines ordinarily found in people’s homes. Satellites also could have been affected, which in turn could have disrupted navigation and communication services here on Earth.
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An image provided by NASA shows a solar flare, as seen in the bright flash in the lower right, captured May 9 by NASA’s Solar Dynamics Observatory. A severe geomagnetic storm warning has been issued for Earth starting May 10 and lasting all weekend – the first in almost 20 years.
