IMAGE satellite image of a proton aurora over the North Pole on September 18, 2000. A bright spot highlights a crack in Earth's magnetic field, allowing solar protons to penetrate and create an unusual auroral display. The aurora is visible as a ring around the magnetic pole, showcasing the interaction between solar particles and Earth's atmosphere.
Astronomy Picture from 17/12/2003
A Proton Aurora
Source: https://apod.nasa.gov/apod/ap031217.html
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