Why are the loops in the sun’s atmosphere so neat and tidy?

Movies taken during the eclipse may set the record straight on the corona’s structure

solar loop structures

A TANGLED SKEIN  Splendid loops in the corona protrude from the sun’s surface, seen in this 2014 ultraviolet image from NASA’s Solar Dynamics Observatory. They are anchored in the sun’s messy magnetic field — so it’s a mystery how they stay so smooth.

NASA/Solar Dynamics Observatory

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