2021 in spaceflight
This article documents notable spaceflight events during the year 2021. 2021 saw several spaceflight related records being set worldwide. This includes both the most orbital launch attempts and most successful orbital launches in a year. In addition, 2021 saw records set in the number of humans in orbit at one time and the most humans in space at one time.
Highlights from spaceflight in 2021 | |
| Orbital launches | |
|---|---|
| First | 8 January |
| Last | 30 December |
| Total | 146 |
| Successes | 135 |
| Failures | 10 |
| Partial failures | 1 |
| Catalogued | 133 |
| National firsts | |
| Spaceflight |
|
| Satellite | |
| Space traveller | |
| Rockets | |
| Maiden flights | |
| Retirements | |
| Crewed flights | |
| Orbital | 8 |
| Orbital travellers | 27 |
| Suborbital | 5 |
| Suborbital travellers | 21 |
| Total travellers | 48 |
| EVAs | 17 |
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