Solar flare: Biggest in six years hits the Earth:
Solar flare: The Sun is in an 11-year cycle of solar flare activity, with a peak next year. Solar flares can disrupt power grids, satellites, oil pipelines and high-accuracy GPS systems
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Solar flare: The Sun is in an 11-year cycle of solar flare activity, with a peak next year. Solar flares can disrupt power grids, satellites, oil pipelines and high-accuracy GPS systems
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