Mariner 8 (also known as Mariner H) had onboard systems identical to
Mariner 6,
Mariner 7, and
Mariner 9. This vehicle was destroyed on launch due a failure of its
Atlas Centaur[?] launch vehicle's autopilot.
- Intended Mission: Mars Survey
- Launched: 8 May 1971
- Total Weight: 2200 pounds
See also: Mariner program, Unmanned space missions