NASA announcements of planetary science research opportunities, collected by Geoffrey Eglinton Announcements for the following research opportunities: Tropical wind, energy conservation and reference level 1974 experiment (TWERLE) Mariner/Jupiter Saturn 1977 Mission The International Ultraviolet Explorer Participation in space craft analysis Pioneer Venus 1977 Probe Mission Space flight investigations Investigations using GEOS-C satellite data Definition of scientific instruments for the Large Space Telescope Lunar data analysis and synthesis program Advanced applications flight experiments Apollo Soyuz test programme Atmospheric, magnetospheric and plasmas-in-space (AMPS) payload Mariner Jupiter/Uranus 1979 flyby mission NASA life sciences program in space Orbiting laboratory 1972 23 March 1972 - 1 May 1975