>You see, I like it so much that I want to pinch it/incorporate it!

There should be no legal problem to incorporate this into Squeak.
The image is free. Check out the globe project on Bobs Super Swiki 
(http://209.143.91.36/super/424)
You will find a pointer to more free solar system maps and a demo
how it will look like in 3D using Andreas Raabs B3DSphereMorph. 

Torsten