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Telstar 1 relays the first live transatlantic television

A satellite built and paid for by AT&T, launched by NASA on a reimbursable basis, relayed live television between the United States and Europe. It was in a low elliptical orbit rather than geostationary, so each usable pass lasted only about twenty minutes, and the demonstration proved the market before the orbit that would serve it had been adopted. Telstar also recorded the first commercial lesson in the space environment: its transistors were damaged by radiation from a high-altitude nuclear test, and it failed within months.

Historical — it happened, and the record is settled.

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Evidence

Partly verified — Core facts are sourced; some optional detail is deliberately absent.

Recorded on Satellite communications

  1. Telstar 1 relays the first live transatlantic television
  2. The Communications Satellite Act creates a commercial satellite operator
  3. Intelsat I (Early Bird) becomes the first commercial geostationary satellite
  4. A geostationary satellite antenna fails to deploy, triggering a record insurance year

Related

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