Space Science Building (SAO), Cambridge, MA, by Smithsonian Astrophysical Observatory, c. 1960s, Smithsonian Archives - History Div, Space Science Building of Smithsonian Astrophysical Observatory, Cambridge, Massachusetts. Located at 60 Garden Street, is headquarters for SAO's international observing stations, center for the Central Bureau for Satellite Geodesy and the Central Telegram Bureau of the International Astronomical Union. Among the laboratories located in Cambridge are those for the analysis of meteorites, for spectral measurements of atoms and molecules, and for studies of planetary atmospheres..