Online Collections

Welcome to the National Museum of Nuclear Science & History's Online Collection!

PastPerfect Online is the internet based public access portal to the museum’s artifact collection. Since only a small part of the museum’s collection can be on display at any one time, this portal gives us the opportunity to present more of the collection and make it available to those who cannot travel to the museum. Approximately ten thousand items, or one third of the museum’s artifact, archival, library, and photographic collections are included. If you have any questions regarding the museum’s collection please contact us at

PastPerfect Online