Description: The postcards in this gallery are from observatories associated with the Smithsonian. The Smithsonian Astrophysical Observatory established in 1890 in Cambridge, Massachusetts, is one of the Smithsonian’s research centers. Together with the Harvard College Observatory, it forms the Harvard-Smithsonian Center for Astrophysics.The Mt. Wilson Observatory opened in the early
Description: Each week, the Archives features a woman who has been a groundbreaker at the Smithsonian, past or present, in a series titled Wonderful Women Wednesday.