This and much more at A Vertical Empire, the story of the UK Space Programme from 1950-1971.
And as an added bonus, have a look at the Victor Incident story over at the Blue Steel Developers page.
I was only a small child at the time, but in my early career 25 years ago I had the privilege of working with some of the engineers who'd worked on these projects.
Wikipedia gives an incomplete guide to UK Cold War Project Names. Some examples:
# Blue Water - air to surface missile
# Brown Bunny - see Blue Peacock
# Green Bamboo - nuclear weapon
# Green Cheese - nuclear anti-ship missile
# Green Flax - SAGW (Surface-to-Air Guided Weapon) - surface to air missile - see Yellow Temple
# Green Granite - nuclear weapons - Green Granite (small) & Green Granite (large)
# Green Light - SAGW - surface to air missile - see Short Sea Cat
# Green Mace - anti-aircraft gun
# Green Palm - airborne voice channel jammer
# Green Satin - airborne Doppler navigation radar unit