In the 1960s and 1970s, color photos of the Earth taken from space by NASA astronauts became pop-culture icons, and were widely distributed as art posters. (I’m sure it helped that the United States government retains no copyright in visual materials created by government employees.) Although this view of the earth from space was not as famous as the so-called Blue Marble, the poster sold well and was seen everywhere, as I am just barely old enough to remember. However, I am not old enough to have seen it in the pages of Color Climax #19 in 1975 as the background for a blowjob:

If any space buffs know their Apollo mission photography (or other space photographic history) well enough to identify the particular history of the photo on the poster, by all means contribute what you know in the comments!

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