Soviet
Union
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(Saturn V/Apollo) |
(N-1/L-3) |
(UR-500/L-1) |
| 1961 | US launches A. B. Sheppard into sub-orbital flight nearly 2 months after flight of Vostok 1. US committed to a manned lunar landing before the end of the decade by Pres. Kennedy | USSR launches first manned spacecraft, Vostok 1, with Y. A. Gagarin aboard. Original N-1 and N-2 launch vehicle programs officially approved | 3-stage Proton booster (in development) designated for circumlunar flight |
| 1962 | Preliminary Apollo mission profile, including lunar orbit rendezvous, approved by NASA | . | . |
| 1963 | . | . | . |
| 1964 | Boilerplate Apollo spacecraft launched by Saturn 1 rocket | USSR launches first multi-manned spacecraft, Voskhod 1. Lunar landing mission adopted. Preliminary N-1/L-3 mission profile established. First lunar landing scheduled for 1967-1968 timeframe | 3-stage Proton/L-1 design and mission profile adopted. Manned lunar fly-by scheduled for 1967 |
| 1965 | First flight of multi-manned US spacecraft (Gemini 3). First spacewalk (EVA) by a US astronaut (E. White, Gemini 4) 3 months after flight of Voskhod 2 | USSR cosmonaut A. A. Leonov completes 1st EVA during Voskhod 2 mission | Maiden flight of 2-stage Proton. Circumlunar mission modified to utilize 4-stage Proton with Korolev L-1 spacecraft |
| 1966 | First manned spacecraft docking demonstrated in earth orbit (Gemini 8) | S. P. Korolev dies during surgery. V. Mishin takes over leadership of USSR space program. N-1/L-3 program officially adopted. First lunar landing set for 3rd quarter of 1968 | . |
| 1967 | Apollo 1 crew killed in flash fire aboard spacecraft during launch pad test. Maiden flight of Saturn V with unmanned Apollo spacecraft (Apollo 4) | V. Komarov killed during maiden (manned) flight of Soyuz spacecraft. Initial N-1 flight tests delayed. First automatic spacecraft docking demonstrated in earth orbit (Cosmos 186/188) | Maiden flight of 4-stage Proton and L-1 spacecraft in earth orbit successful (Kosmos 146), but followed by 3 failures. Cosmonaut training for Zond missions begun |
| 1968 | First manned flight of Apollo spacecraft (Apollo 7), modified after death of crew of Apollo 1. Unmanned lunar module tested in earth orbit (Apollo 6). First manned Saturn V/lunar orbital Apollo mission (Apollo 8) | Cosmonaut training for lunar landing missions begun. Y. Gagarin, 1st human in space, killed during training flight in MiG-15. 1st successful manned flight of Soyuz spacecraft (Soyuz 3), modified after death of Komarov on Soyuz 1 mission | 4 unmanned Zond circumlunar missions all end in failure (3 total, 1 partial) |
| 1969 | First manned flight of lunar module in earth orbit (Apollo 9). 3 manned missions to the moon, including 2 lunar landings (Apollo's 10, 11, & 12) | Maiden flight of N-1 failed after 70 secs. (N-1 3L). 2nd flight of N-1 (N-1 5L) failed immediately after launch - vehicle and launch pad destroyed | Unmanned Zond mission failed in January. 2nd mission in August (Zond 7) only completely successful mission in program, but program canceled |
| 1970 | Apollo 13 lunar landing mission aborted during trans-lunar coast | Unmanned prototype of lunar landing vehicle (T2K) successfully tested in earth orbit | Final unmanned Zond circumlunar mission (Zond 8) partially successful |
| 1971 | 3rd and 4th Apollo lunar landing missions (Apollo's 14 & 15) | 3rd N-1 flight failed after 51 secs. (N-1 6L) Advanced
N-1/L-3M program proposed.
Crew of Soyuz 11 become 1st humans to habitate a space station (Salyut 1) but are killed during reentry |
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| 1972 | 5th and 6th Apollo lunar landings. (Apollo's 16 & 17). Apollo lunar program concluded. No human has set foot on the moon since then | 4th N-1 flight failed after 107 secs (N-1 7L) | . |
| 1973 | Skylab 1 OWS launched unmanned into earth orbit. Extensive damage done to spacecraft during launch. Vehicle manned by successive crews from Skylab's 2, 3, & 4 missions | . | |
| 1974 | . | V. Mishin replaced by long time rival V. P. Glushko. All Soviet manned lunar programs cancelled, and official program of denial begins with destruction of all remaining N-1 hardware | . |
| 1975 | Last manned Apollo mission (ASTP or Apollo 20) docks with Soviet Soyuz spacecraft (Soyuz 19). Another American would not fly in space for 6 more years, until the flight of STS-1 | Soviets continue extensive program of space station missions | |
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