Country of Origin: United States of America
Overall: 81 in. tall x 6 1/2 in. wide (205.7 x 16.5cm)
Metal shell, electronics
One of several cut-away full size replicas of the payload section and fourth stage booster section of the Explorer-1 spacecraft in the collection. Displays the instrumentation, including Geiger counters, micrometeorite detector microphones, temperature sensors as well as the radio and battery system. It was transferred to NASM by JPL via NASA in February, 1975.
Transferred from the National Aeronautics and Space Administration