On the evening of Jan. 31, 1958, the United States orbited its first satellite -- Explorer 1. The effort was part of the nation's participation in the International Geophysical Year (IGY), a peaceful ...

The United States Army launched Explorer 3, its second successful satellite launch in the Explorer program, on March 26, 1958. Explorer 1’s major accomplishment was the discovery of the Van Allen ...

This image shows one of the Vanguard satellites being checked out at Cape Canaveral, Florida in 1958. Vanguard 1, the world’s first solar-powered satellite, launched on St. Patrick’s Day (March 17) ...

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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 artifact is one of several ...

Officially known as Satellite 1958 Alpha, Explorer I was the first United States satellite. Launched from Cape Canaveral in Florida at 10:48 EST on January 31, 1958, today is the 60 th anniversary of ...

Click to open image viewer. This artifact is one of several replicas and flight spare Explorer 1 spacecraft in the collection. It was identified as a fully instrumented flight spare of the Explorer-1 ...