image: This is an image of the Moon transiting across the Sun, taken by SDO in 304 angstrom extreme ultraviolet light on Aug. 21, 2017. view more
Credit: NASA/SDO
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image: This is an image of the Moon transiting across the Sun, taken by SDO in 304 angstrom extreme ultraviolet light on Aug. 21, 2017. view more
Credit: NASA/SDO