Kosmos 419

Kosmos 419 (Russian: Космос 419 meaning Cosmos 419), also known as 3MS No.170 was a failed Soviet spacecraft intended to visit Mars. The spacecraft was launched on May 10, 1971, however due to an upper stage malfunction it failed to depart low Earth orbit.

Background

In 1971, Mars was at its closest to Earth since 1956 and in May of that year both the Soviet Union and the United States made new attempts to reach the Red Planet. Kosmos 419 was intended to overtake the United States probes, Mariner 8 and Mariner 9, in the aim of becoming the first Mars orbiter. As it was, Mariner 8 was lost in a launch failure two days before Kosmos 419 was launched, and Mariner 9 went on to become the first spacecraft to orbit Mars.

Launch

Kosmos 419 was one of three Mars spacecraft launched by the Soviet Union in 1971, the others being Mars 2 and Mars 3; launched days after Kosmos 419. Unlike the 4M spacecraft, Mars 2 and 3, Kosmos 419 was a 3MS spacecraft which consisted only of an orbiter, with no lander. It was the ninth Soviet spacecraft launched to Mars.