[..] "It turns out the diagram actually first appeared in a January 1971 issue of Scientific American, and is credited to Jerry Ostriker" [..]
[..] "The image then made a second cameo in Graphis Diagrams in 1974:"
[..] "And finally, it appeared in the Cambridge Encyclopedia of Astronomy in 1977, which is where Joy Division drummer Stephen Morris saw the design:"
[..] "I went straight to the source and tried e-mailing Peter Saville to see if he had any comment on the matter. I wasn’t really expecting to get a response, but to my surprise his assistant Alice sent a prompt reply: