Melnick was selected by
NASA in 1987. He was the first Coast Guard aviator to participate in the space program and was the first Coast Guard aviator into space. Commander Melnick retired from the U.S. Coast Guard and left NASA in July 1992.
Discovery launched from
LC-39B, on October 6, 1990, at 11:47:15 UTC. The primary goal of the mission was to deploy the Ulysses spacecraft The Inertial Upper Stage (IUS), combined with the Payload Assist Module (PAM-S), Additionally, STS-41 conducted experiments like the Shuttle Solar Backscatter Ultraviolet Instrument (SSBUV), which studied Earth's upper atmosphere, investigations into polymer membrane production (IPMP), On May 7, 1992, 23:40:00 UTC,
Endeavour launched from LC-39B on its maiden flight. The primary mission objective involved a series of spacewalks aimed at capturing and repairing the stranded Intelsat VI satellite. Multiple spacewalks were conducted to retrieve, repair, and redeploy the satellite. The mission featured the first three-person spacewalk, which was an unplanned solution to challenges encountered during the satellite capture. These spacewalks showcased technical proficiency in orbital servicing and repair and set a record for the longest-duration spacewalks at the time. STS-49 concluded with the safe landing of
Endeavour at the Edwards Air Force Base, Runway 22 on May 16, 1992, at 20:57:38 UTC. ==Aerospace-industry career==