Quote:
CORONAL HOLE:
Extreme UV telescopes onboard the Solar and Heliospheric Observatory (SOHO) are monitoring a dark hole in the sun's atmosphere
Coronal holes are vast regions where the sun's magnetic field opens up and allows the solar wind to escape. A stream of solar wind flowing from this hole is heading for Earth now. Arctic sky watchers should be alert for Northern Lights when it arrives late on March 12th or March 13th.
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So when the sun has wind we have to take cover
