- Archival materials (15)
- Collection descriptions (15)
- Photographs (3)
- Audiotapes (2)
- Correspondence (2)
- Gigabytes (2)
- Publications (2)
- Cachets (philately) (1)
- Color slides (1)
- Color transparencies (1)
- Ephemera (1)
- Financial records (1)
- Lantern slides (1)
- Manuscripts (1)
- Newspaper clippings (1)
- Panoramic photographs (1)
- Postage stamps (1)
- Reports (1)
- Scrapbooks (1)
- Slides (1)
- Technical documents (1)
- Technical manuals (1)
- Technical reports (1)
- Telegrams (1)
- Astronautics (13)
- Gemini Project (4)
- Space flight (4)
- Aeronautics (3)
- Astronauts (3)
- Manned space flight (3)
- Lunar excursion module (2)
- Mercury Project (2)
- Project Apollo (U.S.) (2)
- Saturn 5 Launch Vehicle (2)
- Space vehicles (2)
- Aeronautics, Military (1)
- Air pilots (1)
- Airlines (1)
- Airplanes (1)
- Apollo 1 Mission (1)
- Apollo 11 Flight (1)
- Artificial satellites (1)
- Avionics (1)
- Ballistic missiles (1)
- Cold War (1)
- Gliding and soaring (1)
- Helicopters (1)
- Launch vehicles (Astronautics) (1)
- Lunar photography (1)
- McDonnell F-4 (F4H) Phantom II Family (1)
- Periodicals (1)
- Project Vanguard (1)
- Radar air traffic control systems (1)
- Ranger Lunar Probes (1)
- Rocketry (1)
- Soyuz Program (Russia) (1)
- Space Shuttle Program (U.S.) (1)
- Space suits (1)
- Supersonic transport planes (1)
- Technical manuals (1)
- Trophies (1)
- Vostok (manned satellite) (1)
- Zeppelin LZ 129 Hindenburg (1)
Our collections specialists actively work on the conservation, preservation, restoration, and long-term care of the objects in our collection. From full-scale restoration projects to applying preservation techniques and doing regular assessments, these activities form a crucial part of our stewardship of the National Collection.