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Total Eclipse!

SOLAR CORONA, normally too faint to be seen, is clearly visible during the few minutes that the moon completely covers the disk of the sun. It is composed of electrically charged gas that has been heated to one million degrees Fahrenheit as it streams from the solar surface at 250 miles per second. Researchers are comparing data from these optical images with those acquired by other space and ground based instruments during the eclipse.



Corona


Images: NASA

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