1958 in spaceflight
| Orbital launches | |
|---|---|
| First | 1 February |
| Last | 18 December |
| Total | 28 |
| Successes | 6 |
| Failures | 20 |
| Partial failures | 2 |
| Catalogued | 8 |
| National firsts | |
| Spaceflight | Canada |
| Satellite | United States |
| Orbital launch | United States |
| Rockets | |
| Maiden flights | Juno I Sputnik 8A91 Pilot Thor-Able Luna Juno II Atlas B |
| Retirements | Sputnik 8A91 Pilot Juno I |
Explorer 1 was the first American satellite to reach orbit on 31 January 1958.