Matches in DBpedia 2014 for { ?s ?p Template:Wikipedia:WikiProject Timeline of spaceflight/CleanupIn 1975 several notable events happened in spaceflight such as the launch to Mars of the Viking orbiter/landers missions, the joint Apollo–Soyuz Test Project, and the Venera 9 Venus mission.Viking 1 was launched on 20 August 1975 and Viking 2 was launched 9 September 1975.. }
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- 1975_in_spaceflight comment "Template:Wikipedia:WikiProject Timeline of spaceflight/CleanupIn 1975 several notable events happened in spaceflight such as the launch to Mars of the Viking orbiter/landers missions, the joint Apollo–Soyuz Test Project, and the Venera 9 Venus mission.Viking 1 was launched on 20 August 1975 and Viking 2 was launched 9 September 1975.".