(Space) The Solar System elevation " map was a popular

" map was a popular approach for the time and played of the distorted perspectives that Americans could have regionally

These illustrations became a practical tool for the student

the gold-ish lines separate the individual drainage basins for the rivers and creeks of the area

some marginal pinholes

(Space) The Solar System elevation " map was a popular(Space) The Solar System, Hammond, c. 1966With a moon landing still years off, there was already an uncontained enthusiasm that bloomed into imaginary vehicles that would take humans to Mars. Made not long after Mariner 4 sent back early images of Mars surface, this graphic also mentions the fly by of Venus and the potential of "Deep Space Tracking" that could keep contact with missions like the Mariner mission. Shows the relative gravity of different