Description: A daily photo highlight from Smithsonian collections. [caption id="" align="aligncenter" width="422" caption="The operation of the Baker-Nunn camera, located at the Smithsonian Station in Shiraz, Iran, is explained to Mohammed Reza Pahlavi, Shah of Iran, April 26, 1959, by Smithsonian Astrophysical Observatory, Photographic print, Smithsonian Institution Archives, Record Unit