Description: We’re taking a glimpse into the work and life of Margaret Sordahl and other women at Smithsonian Astrophysical Observatory stations around the world.
Description: People use postcards to correspond with each other, but the way they have used postcards to communicate has changed over time. The postcards in this gallery show how postcards began as a quick way to send short communications between individuals, but have since evolved to be used for longer communications and for requests between academics. While the typical use for a postcard