Kosmos 305 (Russian: Космос 305 meaning Cosmos 305) (Ye-8-5 series) was the fifth Soviet attempt at an uncrewed lunar sample return. It was probably similar in design to the Luna 16 spacecraft. It was launched, on a Proton rocket, on October 22, 1969.[1] The engines on the Block D upper stage failed, terminating the mission. This left the spacecraft stranded in Earth orbit. It re-entered within one orbit.[2]

References

  1. ↑ "Luna - Exploring the Moon". orbitalfocus.uk. Retrieved February 23, 2023.
  2. ↑ Siddiqi, Asif A. (2018). "Kosmos 305 [Luna]" (PDF). Beyond Earth: A Chronicle of Deep Space Exploration, 1958-2016. NASA History Program Office: 92. Retrieved February 23, 2023.
Preceded by
Kosmos 300		 Luna programme Succeeded by
Luna 1970A


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