Space: 1999 (ITC Entertainment and RAI, 1975-77) is a British science-fiction television series. In the pilot, nuclear waste from Earth stored on the moon explodes in a catastrophic accident on 13 September, 1999, knocking the moon out of its orbit and sending it and the 311 inhabitants of Moonbase Alpha hurtling uncontrollably into outer space. The series was the last produced by the partnership of Gerry and Sylvia Anderson, famous for the TV series Thunderbirds, Captain Scarlet and the Mysterons, Fireball XL5, and UFO.