History: Carl Sagan with a 'galactic greeting card' plaque that went into space on Pioneer 10 in 1972 (one also went on Pioneer 11 in 1973). [667x1024]

https://i.redd.it/ve6lccvu5as01.png via /r/HistoryPorn https://www.reddit.com/r/HistoryPorn/comments/8cnx3l/carl_sagan_with_a_galactic_greeting_card_plaque/?utm_source=ifttt