Updated: September 29, 2025

The crew of Moonbase Alpha fights for survival in the aftermath of a massive explosion that shifts the Moon from its orbit into space and sends them hurtling into outer space.

Number of episodes: 48 ( List of episodes )

First episode date: September 4, 1975

Budget: $2.8 Million ( Series 1) $4 Million ( Series 2 )

Created by: Gerry and Sylvia Anderson

Genre: Science Fiction