Telstar 14 or Estrela do Sul 1 (Southern Star 1) is a commercial communications satellite in the Telstar series built by Space Systems/Loral (SS/L) for Telesat to provide Ku-band communications to South America and the Southern United States.

The North solar array failed to open after launch, limiting the mission effectiveness.

The president of SS/L later said images of the satellite in orbit showed massive damage to the affected array, indicating that an explosion had occurred during launch.

This replacement satellite, Telstar 14R experienced the same problem, with its north solar array failing to open.

The Telstar 14R replacement satellite is in service, despite that deployment failure.