Tag: exhibition
![A full carload of visitors is pictured either going into or coming out of the Atwood Sphere.](https://www.adlerplanetarium.org/wp-content/uploads/Atwood-Sphere_Credit-Adler-Planetarium.jpg)
A (Very) Brief History of the Atwood Sphere
The Atwood Sphere is the oldest sky simulator in the world still operating. Explore its unique history and how it came to call the Adler Planetarium home!