1:is that really all or do you want more
2:the last part about planets will get jacob a n g e r y so you'll wanna get rid of that
Not very useful, and planets are never going to happen.
Again, seriously? This is the... 4th?5th? time you suggested this? It's been rejected, get over it.
There's a mod that adds balls which approximately simulate newtonian gravity. I'm almost certain that's the closest you can hope for in the forseeable future