Space: Voyager 2 (launched 1977) is the only probe ever to hav…

Question

Did you know? Voyager 2 (launched 1977) is the only probe ever to have visited all 4 outer planets — Jupiter (1979), Saturn (1981), Uranus (1986), Neptune (1989). A planetary alignment that only occurs every 175 years made the "Grand Tour" possible. Since 2018 it is the second probe in interstellar space, after Voyager 1.

Accepted Answer

Voyager 2 (launched 1977) is the only probe ever to have visited all 4 outer planets — Jupiter (1979), Saturn (1981), Uranus (1986), Neptune (1989). A planetary alignment that only occurs every 175 years made the "Grand Tour" possible. Since 2018 it is the second probe in interstellar space, after Voyager 1.

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