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This video shows the changes of the Sun's photosphere that happen in about one hour. The photosphere is the outer shell of the Sun from where the visible light is radiated. You can observe so-called granules, areas of about 1000 km in diameter, where hot gas from inside the Sun rises to reach the surface of the Sun. As the gas cools down, the gas slides down again into the Sun's interior. The brighter regions indicate hot, rising gas - the darker regions cool and down-welling gas.

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Granules on the Sun's Photosphere
Video credit: Credit: SST, Luc Rouppe van der Voort, Institute for Solar Physics
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Published by Published or last modified on 2017-01-14