This is from Spaceweather.com
"A MAGNETIC EXPLOSION ON EARTH'S DOORSTEP: Yes, there are explosions in Earth’s magnetic field. They happen all the time. Gusts of solar wind press against Earth’s magnetosphere, squeezing lines of magnetic force together. The lines criss-cross and reconnect, literally exploding and propelling high energy particles toward Earth. Auroras are the afterglow of this process."
https://www.spaceweather.com/
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