Just in time for Hallowe’en, astronomers confirmed the existence of spooky-looking infrared auroras on Uranus. Their existence reveals something about that planet’s misaligned magnetic field. Auroras happen when charged particles in the solar wind and near-planet environment get trapped by a planet’s magnetic field. They funnel down to the atmosphere and collide with gas molecules. …



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Source: Uranus Has Infrared Auroras, Too