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PETROVA ZEMLJA
Innovation in Space Exploration
Space Technology
Rockets
Proton-K
Attachments
Proton-K - Wikipedia
Parents
Rockets
Children
Luna 15
Luna 16
Luna 17
Luna 18
Luna 20
Luna 21
Luna 23
Luna 24
Mars 2
Mars 3
Mars 6
Phobos 2
Venera 11
Venera 12
Venera 13
Venera 14
Venera 9
Zarya
Jumps
Proton