NASA says the sun is in the highly active "maximum phase" of its 11-year solar cycle. That means there will probably be big solar storms bringing beautiful aurora in the next year or so. Solar eruptions can also disrupt GPS, delay flights, and even knock out power grids. NASA announced Tuesday that the sun is in the "maximum phase" of its 11-year solar cycle, which basically means it's hyperactive. National Weather Service in Shreveport, LABut solar eruptions can also endanger satellites, astronauts, and even power grids here on Earth.

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