Gemini 4 was a significant space mission conducted by NASA, launched on June 3, 1965. It was the first mission to include a spacewalk, or extravehicular activity (EVA), performed by astronaut Edward White. The mission lasted nearly four days and orbited the Earth 62 times. The crew of Gemini 4 consisted of two astronauts: James McDivitt and Edward White. During the mission, White's spacewalk lasted about 15 minutes, allowing him to demonstrate the feasibility of working outside a spacecraft. This mission was crucial in advancing human spaceflight and preparing for future lunar missions.