I wonder if the Apollo 11 mission choose “Futura” as a typeface because the “O” glyph is a perfect circle, and hence the words “Foot” and “Moon” stands out from the crowd.

(excerpt is from the book “Just My Type”)

Of course there is a video about it: “How a typeface helped launch Apollo”: https://www.youtube.com/watch?v=PUW89NpDYJw
How a typeface helped launch Apollo | Douglas Thomas

YouTube