He approached Carl Sagan about his idea, which eventually resulted in the Pioneer plaque.
Pioneer | Pioneer 11 | pioneer | Commemorative plaque | blue plaque | Pioneer Corporation | Pioneer 10 | St. Paul Pioneer Press | Pioneer Column | American pioneer | Pioneer program | Pioneer Valley Performing Arts Charter Public School | Pioneer Square | Ernst Thälmann Pioneer Organisation | Young Pioneer organization of the Soviet Union | Royal Pioneer Corps | Pioneer Zephyr | Pioneer Square, Seattle | Pioneer MRT Station | Pioneer Day | John Macarthur (wool pioneer) | James Williamson (film pioneer) | commemorative plaque | RSD-10 Pioneer | Pioneer Valley | Pioneer plaque | Pioneer Courthouse Square | Pioneer Anomaly | Pioneer anomaly | George Albert Smith (film pioneer) |
The book has the human figures from the Pioneer spacecraft’s plaque on the cover because the city remained far away from Earth, like the Pioneers from NASA.