- Uncrewed spacecraft (87)
- Crewed spacecraft (59)
- Components (objects) (36)
- Instruments (36)
- Payloads (36)
- Equipment (26)
- Testing equipment (11)
- Protective and life-saving equipment (9)
- Communication systems (mechanical and electrical systems) (6)
- Navigational instruments (3)
- Electrical systems (2)
- Propulsion systems (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.