This cache is being placed to celebrate both the opening of Cambridge North station on 21 May this year, and the 10th anniversary of Sidetracked caches on 10 August. Cambridge North is the first station to be opened in the county since Fen Ditton Halt over the river (and two others on the Cambridge-Mildenhall line) in 1922: we wish it more success than that long-closed alternative.
Image from Cambridge News site
The station has a fine, large, modern building, with a facade decorated, appropriately, with a cellular automata pattern from computer science.
The cache is a nano enclosed in something larger. Please ensure it's fixed securely when you reassemble it.