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Wednesday, September 18, 2019

Jupiter and its 4 Galilean moons -- Io, Europa, Ganymede, Callisto(top to bottom). The Galileo spacecraft obtained the images to make this composite in 1996. Credit: NASA PhotoJournal.


http://bit.ly/30xKWgw via /r/spaceporn http://bit.ly/2IbVRWI

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