GEOMAGNETIC STORM WARNING: A CME is heading for Earth and it could spark a geomagnetic storm when it arrives on April 25th. NOAA forecasters say moderately strong G2-class storms are possible, which means auroras could dip into northern-tier US states from Maine to Washington. Full story and updates @ Spaceweather.com.
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Above: This C3.8-class solar flare launched the CME toward Earth during the early hours of April 22nd. Credit: NASA/Solar Dynamics Observatory.
