Figure 1. Calvin Coolidge (front row center) at the February 11, 1927, conference “The Future of the Smithsonian” with William Howard Taft (to his left), Chancellor of the Board of Regents, and Abbot, front row right. Source: 1927 conference SIA-MAH 17844A. More about this image found in Calvin Coolidge (front row center) at the February 11, 1927, conference “Th...

Figure 2. The building plans of the Smithsonian complex circa 1955. The planetarium is located near the Smithsonian Castle. Source: SIA, RU 50, Box 95, Folder “NAM Building Program, 1955.” More about this image found in The building plans of the Smithsonian complex circa 1955. The planetarium i...

Figure 3. “Rocket Row” along the west side of the Arts and Industries Building in the 1960s. From left to right, Jupiter C, Vanguard, Polaris, and Atlas. Historic Images of the Smithsonian, SIA. https://siarchives.si.edu/collections/siris_sic_9545 More about this image found in “Rocket Row” along the west side of the Arts and Industries Building in the...

Figure 4. Charles Barbely, in the early 1970s, demonstrating the prototype Experimentarium in a temporary domed structure. Source: SI 73-2799. More about this image found in Charles Barbely, in the early 1970s, demonstrating the prototype Experiment...