The Braided Sun

The Sun is the center of our Solar System. Scientists have long puzzled over why the surface of the sun is cooler than its corona, the outer hazy atmosphere visible during a solar eclipse. Now thanks to a five-minute observation by a ultraviolet telescope they have some magnetic answers. A rocket-borne camera has provided some of the sharpest images yet of the Sun’s corona, the hot layer of gas that extends more than a million kilometers above the solar surface.

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