The backup satellite of the Prospero vehicle that R3 launched, slated for launch aboard R4 before it was scrapped and eventually hung in the London Science Museum as a partner to the R4.
A portion of the text of "Computing machinery and intelligence" by Alan Turing, which posed the question "can machines think" and proposed the Turing test.
A photograph of the Waxwing SRM (solid rocket motor) used as the 3rd stage on the Black Arrow rocket. Hung in the London Science Museum as it would appear moments after separating from the second stage.
