Gemini 4 (officially Gemini IV) was a manned space flight in NASA's Gemini program, launched on the 3rd June, 1965. It was the 2nd manned Gemini flight, the 10th manned American flight and the 18th spaceflight of all time (includes X-15 flights over 100 km). It was crewed by James McDivitt and Edward White. Read more