Artist’s concept of Explorer 1 in orbit. Image via NASA. Explorer 1 weighed just 30 pounds (14 kilograms) and was under 7 feet (203 cm) long. It took 114.8 minutes to complete one orbit of Earth – ...
Sixty years ago next week, the hopes of Cold War America soared into the night sky as a rocket lofted skyward above Cape Canaveral, a soon-to-be-famous barrier island off the Florida coast. The date ...
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Your browser cannot play the provided video file(s). This footage from the U.S. Army's "The Big Picture" TV series recounts the tense days leading up to the ...
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 ...
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