Gemini IV Mission: Key Milestones from 1965 Launch
Gemini IV launched on June 3, 1965, marking a significant progression in U.S. space exploration with a four-day mission. The mission included the first American spacewalk and aimed to refine procedures for longer space travel.

On June 3, 1965, Gemini IV launched from Cape Canaveral at 10:16 a.m. (Eastern Time) with astronauts James McDivitt and Ed White. This mission, lasting four days and completing 62 orbits, aimed to establish protocols for extended space travel and included new maneuvers and experiments.
Notably, White conducted the first American spacewalk, lasting 21 minutes, utilizing a Hand-Held Maneuvering Unit (HHMU) that ultimately proved ineffective. The mission's rendezvous attempt with the Titan launch vehicle was unsuccessful, and the HHMU was subsequently discontinued due to its rapid propellant consumption. Future missions will benefit from the lessons learned during this critical mission.




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