Voyager 1 came later than Sputnik 1: 1977 vs 1957. They are 20 years apart.
| Item | Value | Position in ranked list |
|---|---|---|
| Sputnik 1 | 1957 | 1 of 8 |
| Voyager 1 | 1977 | 4 of 8 |
Values are approximate and rounded. This comparison comes from the list "space missions by launch year, earliest first" (8 items, position 1 is first in that order).
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