Telstar 1 lifted off aboard a Delta rocket from Cape Canaveral, becoming the first active communications satellite to relay television, telephone, and data signals across the Atlantic. Within hours it transmitted the first live transatlantic television images, connecting the United States, Britain, and France and inaugurating the age of global satellite communications.
Telstar 1 was a sphere barely three feet across, bristling with 3,600 solar cells and weighing just 170 pounds, yet it changed how humans understood distance. Built by Bell Labs and launched by NASA on a cost-sharing deal with AT&T, it orbited the earth every two and a half hours, and for about twenty minutes per orbit it could relay a signal between ground stations in Maine, England, and France.
That evening, viewers on both sides of the Atlantic watched live images flicker across their screens for the first time, including a brief shot of the Eiffel Tower and a portion of a baseball game. Newspapers treated it as a near-miracle: instantaneous transatlantic television had, until that day, existed only in science fiction.
Telstar also carried an unglamorous but historic payload of purpose: proving that private industry and government could jointly engineer the infrastructure of a media-connected planet. Its active life was brief, radiation from a high-altitude nuclear test damaged its transistors within months, but it had already proven the concept. Every modern satellite broadcast, every live global event beamed instantly across oceans, traces its lineage back to this small sphere launched on July 10, 1962.