Space Artist

This is really fun to play around with! As someone with a lot of background in physics, though, I'm a little surprised at the way the bodies move, even just considering two bodies. Are you using a 1/R^2 force law? (Gravitational force is prop. to 1/R^2, R being the distance between the bodies.) It may be the granularity of the numbers, but the interactions tend towards instability, especially at short range. Maybe some more features to spice this up! 3/5