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This photograph of the southern hemisphere of Jupiter was obtained by NASA's Voyager 2 on June 25, 1979. Seen in front of the turbulent clouds of the planet is Io, the innermost of the large Galilean satellites of Jupiter. https://t.co/qU1prlPCxA 📸: NASA/JPL https://t.co/PpCdQ7fqwe — PolitiTweet.org