Tag: Chicago Astronomical Society
![Above: Junior members of CAS observing at the Adler’s rooftop in the context of Operation Moonwatch, c. 1957 (Adler Archives)](https://www.adlerplanetarium.org/wp-content/uploads/Junior-members-of-CAS.png)
Chicago: A City of Stargazers
Chicago has long been a city of stargazers. And one way or another, all astronomical roads in Chicago have led to the Adler since it became the first planetarium in the Western Hemisphere in 1930. Here are a few stories, objects, and documents from our collections that remind us how the Adler has helped Chicagoans […]