STS-53 was the final dedicated Department of Defense mission. Discovery carried a classified primary payload for the United States Department of Defense, two unclassified secondary payloads and nine unclassified middeck experiments.
4"
STS-53 was the final dedicated Department of Defense mission. Discovery carried a classified primary payload for the United States Department of Defense, two unclassified secondary payloads and nine unclassified middeck experiments.
4"
