NASA/MSFC · Public domain · Wikimedia Commons
Facts
Sources: Wikidata (CC0) · Wikidata Q1187262
Launches · 9
| Spacecraft | Launch | Operator |
|---|---|---|
 Voyager 1 | September 5, 1977 | National Aeronautics and Space Administration |
| Voyager 2 | August 20, 1977 | National Aeronautics and Space Administration |
 Helios 2 | January 15, 1976 | — |
| Viking 2 Lander | September 9, 1975 | National Aeronautics and Space Administration |
| Viking 2 Orbiter | September 9, 1975 | National Aeronautics and Space Administration |
 Viking 1 Lander | August 20, 1975 | National Aeronautics and Space Administration |
| Viking 1 Orbiter | August 20, 1975 | National Aeronautics and Space Administration |
 Helios 1 | December 10, 1974 | — |
 Sphinx | February 11, 1974 | National Aeronautics and Space Administration |