Chicago History Museum
Encyclopedia of Chicago: Adler Planetarium
Examine the history of famous Chicago landmark, the Adler Planetarium and Astronomy Museum.
Curated OER
Wikipedia: National Historic Landmarks in Illinois: Adler Planetarium
First and oldest planetarium in the western hemisphere.
PBS
Pbs Learning Media: Earth in Motion: Seasons
This interactive activity from the Adler Planetarium explains the "reasons for the seasons." Featured is a game in which Earth must be properly placed in its orbit in order to send Max, the host, to different parts of the world during...
Other
The Astrolabe: Home Page
This site provides a very general overview of astrolabe principles with links to other pages for more detailed information.