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Gemini 4

Gemini 4 was the second crewed spaceflight of NASA's Project Gemini, launched on June 3, 1965. It was a four-day mission crewed by James McDivitt and Edward White. The mission's most significant highlight was the first extravehicular activity (EVA), or spacewalk, by an American, performed by Ed White. Floating outside the spacecraft for 23 minutes, White demonstrated that humans could work and maneuver in the vacuum of space. The mission also attempted the first space rendezvous with the spacecraft's spent Titan II upper stage, though this proved more difficult than expected. Gemini 4's success provided vital data on long-duration flight and EVA operations, both of which were essential for the upcoming Apollo lunar missions.

Gemini 4
NASA/Jim McDivitt · Stored JPEG is a resized rendition of NASA's direct asset (stored/public 2364x2021 SHA-256 9a873b4d4c51462f832a1f5647a7cce1f753d40e2f0788508de5cb58b4bfd729; authoritative 2048x1750 asset SHA-256 89481fee0e8d61df49ad8c2f5b3afca5a2b685dbec299dfc0a55e0ac082c3071). Resizing the authoritative asset to the stored dimensions yielded MAE 1.34, RMSE 1.91, and Pearson correlation 0.99959, conclusively identifying the stored derivative. NASA's historical Gemini IV article identifies this exact image as Ed White floating outside Gemini IV during the June 3, 1965 spacewalk and credits NASA/Jim McDivitt: https://www.nasa.gov/history/gemini-iv-learning-to-walk-in-space-2/. NASA's current Images and Media Usage Guidelines allow NASA content for factual or informational use when it does not imply endorsement, but state that third-party copyrighted material remains protected and that NASA hosting does not convey rights; commercial use involving identifiable persons may require additional permission: https://www.nasa.gov/nasa-brand-center/images-and-media/. This records an asset-level, conservative factual/editorial reuse basis with the source credit preserved; it is not a public-domain, blanket commercial, promotional, or merchandise license. · Source
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Identity

Name
Gemini 4
Status
completed

Details

Astronauts
Description
Gemini 4 was the second crewed spaceflight of NASA's Project Gemini, launched on June 3, 1965. It was a four-day mission crewed by James McDivitt and Edward White. The mission's most significant highlight was the first extravehicular activity (EVA), or spacewalk, by an American, performed by Ed White. Floating outside the spacecraft for 23 minutes, White demonstrated that humans could work and maneuver in the vacuum of space. The mission also attempted the first space rendezvous with the spacecraft's spent Titan II upper stage, though this proved more difficult than expected. Gemini 4's success provided vital data on long-duration flight and EVA operations, both of which were essential for the upcoming Apollo lunar missions.
Destination
Earth orbit for a four-day crewed mission demonstrating long-duration Gemini operations, rendezvous procedures, and the first American spacewalk
End Date
1965-06-07
Launch Site
Outcome
Success
Programs
Start Date
1965-06-03
Vehicle Families

Links

Official Url
https://www.nasa.gov/mission/gemini-iv/
Wikipedia Url
https://en.wikipedia.org/wiki/Gemini_4

Assets & Meta

Creation Time
April 26, 2026 at 15:51:36 UTC
Updated Time
August 23, 2026 at 00:50:18 UTC
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