For years I was searhing for some good 3D gravity simulator, and suddenly yesterday I accidentaly found Universe Sandbox. Now I feel sad because I didn't found it earlier. It's great, fantastic, beautiful... I can't express my feelings. Excellend job!
Currently I'm using free version. But for sure I will buy premium!
I have just one suggestion. It would be nice if you could implement feature that would give us possibility to import comets and/or asteroids from one of
these formats. Let's say MPC, or any other if it is easier to implement. What do you think?
Thank you, jurluk
PS. Sorry on my bad english