1975
May 24–26
The Lunar Geology Short Course, offered to 25 junior-college earth science educators from Oklahoma, New Mexico, and Texas, is the first educational initiative conducted by the LSI. The course was organized by Russ Merrill, Ron Greeley, and Pete Schultz.
May 31
The European Space Agency is formed.
July 16
A film crew from USSR national television files a short special on the function, organization, and activities of the LSI as part of their coverage of the Apollo-Soyuz Test Project (ASTP) and the American space program.
August 20
NASA launches Viking 1.
October 22
The Soviet Venera 9 lander returns with the first pictures from the surface of Venus.
November 17–19
The Conference on Origins of Mare Basalts and Their Implications for Lunar Evolution is held. Discussions at the conference lead to the inception of the Basaltic Volcanism Study Project.