Window Retainer, Right-Hand Outer, Gemini XII


Display Status:

This object is not on display at the National Air and Space Museum. It is either on loan or in storage.

Collection Item Summary:

This outer window retainer formed part of the window assembly in the right-hand hatch above Edwin "Buzz" Aldrin’s head in the Gemini XII spacecraft.Commanded by Jim Lovell and piloted by Aldrin, Gemini XII was launched on November 11, 1966 for a 4-day, 59-orbit mission. Highlights included 3 extra-vehicular activities (EVAs) by Aldrin, 5 hours 30 minutes total, in which he evaluated improved EVA techniques to manage workload and overheating during EVA. Aldrin made extensive use of handholds and footholds to prevent unwanted movement during his tasks, and his techniques were an important milestone toward effective astronaut use of EVA. During one of the spacewalks, Aldrin attached a tether to the docked Agena 12. The tether allowed the crew to create an artificial gravity by separating the Gemini from the tethered Agena and firing thrusters to induce a slow spin.

NASA transferred the Gemini XII spacecraft and this window retainer to the Smithsonian in 1968.

Collection Item Long Description:

Inventory Number


Credit Line

Transferred from the National Aeronautics and Space Administration

Country of Origin

United States of America


  • Fiberglass
  • Phenolic Resin
  • Aluminum
  • Ink


Overall: 3/8in. x 10 3/4in. x 1ft 6 11/16in. (0.95 x 27.31 x 47.47cm)

Data Source

National Air and Space Museum

Restrictions & Rights

Do not reproduce without permission from the Smithsonian Institution, National Air and Space Museum


SPACECRAFT-Manned-Parts & Structural Components