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 ...

Add Yahoo as a preferred source to see more of our stories on Google. Explorer 1 became the first successfully launched satellite by the United States when it was sent to space on 31 January 1958. A ...

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 ...

REDSTONE ARSENAL, Alabama -- Since America's beginning, the U.S. Army led the nation in exploration of the continent, and this year it celebrates the 60th anniversary of leading the nation in the ...

Click to open image viewer. This is one of several examples of the Explorer 1 payload section in the collection, consisting of machined and painted metal shells with no instrumentation. This outer ...

Add Yahoo as a preferred source to see more of our stories on Google. On March 26, 1958, the United States launched its third satellite into space. Explorer 3 was almost identical to Explorer 1, which ...