Explorer 1 was front-page news across the U.S. The first successful U.S. satellite was often called a "moon" or a "man-made moon" then. American journalist and anchorman Walter Cronkite uses models to ...
Sixty years ago today, the United States used a modified German V-2 rocket to send the country’s first satellite, Explorer 1, into orbit around the Earth. This momentous achievement was just the first ...
George Ludwig, a graduate student who worked with physicist James Van Allen at the University of Iowa, is seen here testing the Explorer 1 instruments as the satellite was prepared for launch. When ...
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