Tags: Artificialsatellite, Satellite.
Mariner 4 (together with Mariner 3 known as Mariner–Mars 1964) was the fourth in a series of spacecraft intended for planetary exploration in a flyby mode. It was designed to conduct closeup scientific observations of Mars and to transmit these observations to Earth. Launched on November 28 1964 Mariner 4 performed the first successful flyby of the planet Mars returning the first pictures of the Martian surface.
