Denver Museum promotes Linux

Today we went to the Denver Museum of Nature & Science.

They had this very cool exhibit where this huge sphere would light up as different planets and moons:

And they could add text to point out locations:

But even cooler yet was they explained how they did it and they used “Linux”. Usually when they list an operating system, I assume it’s a paid advertisement, but in this case it just said “Linux”.

They did not say what software they used to control the images and rotation …