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First spacecraft to orbit another planet – Mariner 9 launched

First spacecraft to orbit another planet

30 May, 1971

The first spacecraft to orbit another planet was US Mariner 9. It was launched on 30th May 1971 from Cape Canaveral Air Force Station.

Mariner 9 reached the orbit of planet Mars on 14th November 1971 beating the Soviet’s Mars 2 and Mars 3 both of which arrived within a month.

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