Tags: Artificialsatellite, Satellite.
Mariner-H (Mariner Mars ’71) also commonly known as Mariner 8 was (along with Mariner 9) part of the Mariner Mars ’71 project. It was intended to go into Mars orbit and return images and data but a launch vehicle failure prevented Mariner 8 from even achieving an Earth orbit and the spacecraft reentered into the Atlantic Ocean shortly after launch.
