1974 in spaceflight
Soyuz-U launch vehicle | |
| Orbital launches | |
|---|---|
| First | 5 January |
| Last | 2 December |
On 29 March 1974 Mariner 10 became the first spacecraft to fly by Mercury, that saw a spacecraft for the first and last time in the 20th century.
Soyuz-U launch vehicle | |
| Orbital launches | |
|---|---|
| First | 5 January |
| Last | 2 December |
On 29 March 1974 Mariner 10 became the first spacecraft to fly by Mercury, that saw a spacecraft for the first and last time in the 20th century.