Early in his career, Welch worked for O’Neil Ford of San Antonio, whose influence shows in the massing and brickwork of this windowless building, in which a one-story rectangular office-and-exhibition block with rounded corners intersects the two-story, cylindrical planetarium. An addition in 2009 on the north side of the planetarium is a simple square with a facade wall of black brick with a scattering of white, symbolizing the West Texas night sky. The neutrality of the facade avoids competition with the geometric forms and ornate brickwork of the museum’s earlier, adjacent buildings.
To the west of the planetarium at 1805 W Indiana Avenue is the Haley Memorial Museum and Research Library founded in 1961 by the eminent historian of the Southwestern Range, J. Evetts Haley.