sts-51-d mission patch, from NASA website http://science.ksc.nasa.gov/shuttle/missions/51-a/mission-51-a.html archive copy at the Wayback Machine http://science
File:STS-51APatch.svg is a vector version of this file. It should be used in place of this PNG file when not inferior. File:Sts-51-a-patch.png → File:STS-51A