Neptune is a planet near the edge of the solar system.
In 1990, thirteen years after its launch on August 20, 1977, Voyager 1 passed the orbital plane of Neptune and essentially left the solar system. (TXF: "Little Green Men")
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Neptune is a planet near the edge of the solar system.
In 1990, thirteen years after its launch on August 20, 1977, Voyager 1 passed the orbital plane of Neptune and essentially left the solar system. (TXF: "Little Green Men")