Space Explorers poster issued by the Smithsonian Air & Space Museum in 1988. When folded out, the poster features photos of all astronauts who had flown into space up to that time on one side, and diagrams and facts about various space craft on the other. When folded out to its full size the poster measures 34" tall by 22" wide. See photos and condition description for more detail on the poster's condition, and thanks for looking!