“Mission to the Unknown”, Scenes 11-13, Rocket Ship Exterior

On these albums

Doctor Who: The Daleks’ Master PlanTerry Nation & Dennis Spooner starring William Hartnell, Peter Purves & Adrienne Hill · 2001Soundtrack

Doctor Who: The Lost TV Episodes - Collection TwoVarious Artists · 2011

Source: MusicBrainz recording f69a3a18-0eb5-4e36-8f24-ae1321118fcc (CC0).