Space Shuttle Projects

The principal theme of the STS-37 patch, designed by astronaut crewmembers, is the primary payload -- Gamma Ray Observatory (GRO) -- and its relationship to the Space Shuttle. The Shuttle and the GRO are both depicted on the patch and are connected by a large gamma. The gamma symbolizes both the quest for gamma rays by GRO as well as the importance of the relationship between the manned and unmanned elements of the United States space program. The Earth background shows the southern portion of the United States under a partial cloud cover while the two fields of three and seven stars, respectively, refer to the STS-37 mission designation.