Beyond Earth orbit launches in 1973
Launches:
| Date | Site | Rocket | Payload | Outcome |
|---|---|---|---|---|
| 1973-01-08 | Baikonur | Proton K/D | Luna 21/Lunokhod 2 (Luna Ye-8 #204) | success |
| 1973-04-06 | Cape Canaveral | Atlas-Centaur Atlas SLV-3D / Centaur-D1A | Star-37E / Pioneer 11 | success |
| 1973-06-10 | Cape Canaveral | Delta 1000 1913 | Explorer 49 (RAE B) | success |
| 1973-07-21 | Baikonur | Proton K/D | Mars 4 (3MS 52S) | success |
| 1973-07-25 | Baikonur | Proton K/D | Mars 5 (3MS 53S) | success |
| 1973-08-05 | Baikonur | Proton K/D | Mars 6 (3MP 50P) | success |
| 1973-08-09 | Baikonur | Proton K/D | Mars 7 (3MP 51P) | success |
| 1973-11-03 | Cape Canaveral | Atlas-Centaur Atlas SLV-3D / Centaur-D1A | Mariner 10 | success |