IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. This is one of several examples of ...
On Jan. 31, 1958, Explorer 1 became the first satellite launched by the United States. Its primary science instrument, a cosmic ray detector, was designed to measure the radiation environment in Earth ...
Click to open image viewer. This is one of several replicas of the Explorer 1 in the collection consisting of machined metal shells of the payload section. Explorer-1 was the first American satellite ...
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