- Crewed spacecraft (394)
- Components (objects) (288)
- Personal equipment (283)
- Spacesuits (283)
- Testing equipment (63)
- Navigational instruments (22)
- Electrical systems (12)
- Instruments (11)
- Payloads (11)
- Commemoratives (4)
- Propulsion systems (4)
- Communication systems (mechanical and electrical systems) (2)
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.