Landsat 5, the fifth satellite of the Landsat program, launches. Its primary goal is to provide a global archive of satellite photos of Earth.
The Fifteenth Lunar and Planetary Science Conference is held at the Gilruth Center, with 500 in attendance.
The Conference on the Origin of the Moon is held in Kona, Hawaii. This pivotal conference (often referred to simply as the “Kona Conference”) leads to the consensus view that the Moon formed from a giant impact with Earth.
The Symposium on Lunar Bases and Space Activities of the 21st Century, sponsored by the LPI, is held in Washington, DC.
November 30–December 1
The Mars: Evolution of its Climate and Atmosphere (MECA) study project begins with its first workshop, Water on Mars.