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Yesterday’s moderately-sized (M8-class) #SolarFlare produced a massive eruption (a coronal mass ejection), currently en route to Earth. Forecasters have issued a ‘severe’ geomagnetic storm watch (G4 on G1-5 scale). Expect to see misinformation about this, so here are some facts:

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Dr. Ryan French

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Happy #SunDay! This week’s space weather report includes: · 49 M-class flares · 3 X-class flares · 41 coronal mass ejections · 1 geomagnetic storm This video, from NOAA's GOES-R satellite, shows the week’s activity. More about flares & CMEs:
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