Astronomy · Guest
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A real 360° aurora, October 10, 2024.
Rocky Raybell from Keller, Ferry County, Washington, USA · CC BY 2.0
Midan
الشفق القطبي
The high air is answering the sun. A wind of charged particles meets Earth's magnetic field, and the field guides some of them down toward the poles, where they strike the air and it shines. We go into that meeting: the wind, the field, the particles, and the light over both ends of the world.