The spaceship Altares, with a photon drive capable of accelerating it to the speed of light, leaves an Earth-orbiting space station. The Altares crew, two families of scientific specialists, journeys at light speed with time-dilation to Alpha Centauri, where they launch several satellites to transmit information on the Centauri star system back to Earth and guide future manned vessels in exploring.

Genres

Cast

Ed Bishop

TV Announcer

Brian Blessed

Dr. Tom Bowen

Joanna Dunham

Anne Bowen

Don Fellows

Jim Forbes

Nick Tate

Capt. Harry Masters

Katharine Levy

Jane Masters