Fooling around again looking for a shadow bug, and instead found a graphical bug with the surface of every planet.
Here are instructions to do this bug yourself.
1: Open up any simulation
(1.5):You might want to slow down time a lot
2: create a bowling ball near a planet
3:zoom all the way in on the bowling ball
4: witness the bug.
http://youtu.be/bM4iHzgaK7Q