Explorer 1 was less than 2 meters long and weighed about 13.4 kg. The model William Hayward Pickering, James Van Allen, and Wernher von Braun are brandishing triumphantly in this photo is the ...

On August 16, 1995, Microsoft released Internet Explorer 1. The company's first web browser was a pretty bare-bones application but would set the stage for its future browser releases. A few months ...

Explorer 1 became the first successfully launched satellite by the United States when it was sent to space on 31 January 1958. A quick response to the Soviet Union’s launch of Sputnik 1, Explorer 1’s ...

A half-century ago, the Jet Propulsion Laboratory’s Explorer 1 spacecraft became America’s first Earth-orbiting satellite when it sailed into space on Jan. 31, 1958. In honor of the historic ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. One of several replicas and backup ...

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 ...