Brief
Soviet Union launches Zond 8 on final Zond moon flyby mission
Zond 8 performed a circumlunar flight, returned safely despite a guidance glitch, and marked the end of the Soviet lunar probe program.
By Felo News Desk · Published
On Oct. 20, 1970 the Soviet Union launched the Zond 8 spacecraft on a circumlunar mission, the final flight of the Zond program, according to Space.com.
What happened
Zond 8 lifted off on 20 October 1970 and spent about a week in space. It flew around the Moon, approaching within 1,120 km of the lunar surface, then returned to Earth, splashing down in the Indian Ocean on Oct. 27 1970. A solar‑attitude sensor failure caused a steeper re‑entry path, but the capsule was recovered by a recovery ship.
What the reports add
The article notes that earlier Zond missions had explored Venus and Mars, while later flights focused on lunar flybys. Although uncrewed, Zond 8 was a test of the L1 spacecraft intended for crewed Moon missions. The guidance system malfunctioned on the return leg, yet the probe survived and returned valuable Earth‑rise photographs similar to those taken by Apollo 8 in 1968.
What was said
Space.com’s piece attributes the description of Zond 8’s success despite the guidance glitch to RussianSpaceWeb.com, which reported the probe’s safe splash‑down and retrieval.
How it came about
The Zond series began with missions to Venus (Zond 1) and Mars (Zond 2) before shifting to lunar flybys. By the time Zond 8 launched, the United States had already landed astronauts on the Moon with Apollo 11 and Apollo 12 and rescued the Apollo 13 crew. The Soviet lunar landing program was therefore effectively over, and Zond 8’s flight marked the end of Soviet Moon‑probe efforts. Russia later developed the Salyut and Mir space stations and, after a long hiatus, launched a new uncrewed Moon lander, Luna 25, in 2023, which failed on impact. The country has pledged a return to the Moon in 2027.
Key facts
- Zond 8 launched on Oct. 20, 1970 as the last Zond mission (space.com)
- The spacecraft looped the Moon within 1,120 km and splashed down in the Indian Ocean on Oct. 27, 1970 (space.com)
- A guidance system malfunction occurred on return, but the probe was recovered safely (space.com)
Sources
- [1] space.com — originally reported as “On this day in space! Oct. 20, 1970: The Soviet Union launches last-ever Zond moon mission”
