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.
This page contains content from the copyrighted Wikipedia article "1975 in spaceflight"; that content is used under the GNU Free Documentation License (GFDL). You may redistribute it, verbatim or modified, providing that you comply with the terms of the GFDL.