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Mission patch for Gemini 4 with the words First Spacewalk and McDivitt and White on it.

Gemini IV

Occurred 59 years ago

Gemini IV (GT-4) was the second crewed mission of the Gemini series. James McDivitt and Edward White successfully completed the 4-day, 62-orbit flight between June 3 and June 7, 1965. The mission included the first American spacewalk.

Mission Type

Human Spaceflight

mission duration

4 days, 1 hour, 56 minutes, 12 seconds


June 3, 1965


June 7, 1965
Astronauts Edward H. White II (left) and James A. McDivitt are shown going through tests in a Gemini Crew Simulator at the Cape.

Edward H. White II


Selected as part of NASA’s Astronaut Group 2, Ed White became the first American to perform a spacewalk on the Gemini IV mission in 1965. Assigned to the first Apollo mission, White tragically died in the Apollo 1 fire in 1967.

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Portrait of astronaut Ed White
S64-31631 (10 Sept. 1964) — Astronaut Edward H. White II. (EDITOR’S NOTE: Astronaut White died in the Apollo/Saturn 204 fire accident at Cape Kennedy on Jan. 27, 1967.)
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