James Alton McDivitt Jr. was a U.S. Air Force pilot, test pilot, and NASA astronaut. He commanded Gemini 4 in 1965 and Apollo 9 in 1969, later managing the Apollo spacecraft program until 1972.
During Gemini 4 he reported seeing an unidentified cylindrical object outside the spacecraft window and took photographs. The sighting was recorded in Project Blue Book.
- Commanded Gemini 4, June 3–7, 1965, during which Ed White performed the first U.S. spacewalk.
- Commanded Apollo 9, March 3–13, 1969, the first crewed test of the complete Apollo spacecraft stack.
- Served as Apollo Spacecraft Program Manager, 1969–1972, overseeing planning for Apollos 11–16.
- Reported Gemini 4 object sighting on June 4, 1965; later attributed the image to window reflections in a 1999 interview.
- Retired from NASA and the Air Force as a brigadier general in 1972.
- United States
- United States Air ForceBrigadier General, Korean War combat pilot and test pilot
- NASAAstronaut 1962–1972, Apollo program manager
- Gemini programCommand Pilot, Gemini 4, 1965
- Apollo programCommander, Apollo 9; program manager 1969–1972
- University of MichiganBS Aeronautical Engineering, 1959
- Edwards Air Force BaseExperimental test pilot
Background
James Alton McDivitt Jr. was born June 10, 1929, in Chicago, Illinois, and grew up in Kalamazoo, Michigan. He graduated from Kalamazoo Central High School and attended Jackson Junior College before enlisting in the U.S. Air Force in 1951.
McDivitt flew 145 combat missions in the Korean War in F-80 and F-86 aircraft. He earned two Distinguished Flying Crosses for his service. After the war he returned to the United States and continued service as an interceptor pilot at McGuire and Tyndall Air Force Bases.
In 1959 he graduated first in his class with a Bachelor of Science in aeronautical engineering from the University of Michigan through the Air Force Institute of Technology. He then qualified as a test pilot at the Air Force Experimental Flight Test Pilot School and Aerospace Research Pilot School.
McDivitt served as an experimental test pilot at Edwards Air Force Base, California, logging more than 5,000 flying hours before his selection. NASA chose him in September 1962 as part of its second group of astronauts.
He commanded Gemini 4, launched June 3, 1965, a four-day mission that included the first American spacewalk by crewmate Ed White. On June 4, while over the Pacific, McDivitt observed a white cylindrical object with a protruding arm and photographed it through the window.
The Gemini 4 sighting was entered in Project Blue Book records as unidentified. McDivitt reported the object to ground control and stated he could not identify it as a satellite, rocket stage, or other known item at the time.
McDivitt commanded Apollo 9 in March 1969, the first crewed flight of the complete Apollo lunar module and command-service module stack. After the mission he became manager of lunar landing operations and then Apollo Spacecraft Program Manager.
In that role he oversaw planning for Apollos 11 through 16 and spacecraft redesigns. He left NASA in 1972, retired from the Air Force as a brigadier general, and later held executive positions at Pullman Inc. and Rockwell International.
McDivitt was the first Roman Catholic to fly in space. He logged 14 days, 2 hours, and 56 minutes in space across his two missions.
Legacy
James McDivitt died October 13, 2022, at age 93 in Tucson, Arizona. His Gemini 4 and Apollo 9 missions contributed to the development of rendezvous techniques and lunar module operations that supported later Apollo landings.
The 1965 object sighting remains documented in Project Blue Book files; McDivitt later identified the photograph as likely caused by reflections from window bolts.
Last updated 25 October 2026