Mariner 8
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
