I hope planets actually fall into the star. When I set all velocities to 0 including the star, even when I set it up just seconds before an item hits the star, 95% of the time it flies past the star at AUs per second. It's a bit annoying really. I wanted stuff to be absorbed by the star or the object I'm trying to make hit. Not fly super close to it then fly millions of AUs away.
I suppose this also brings the suggestion change to mind, decaying orbit settings. Telling an object to decay it's orbit till it lands on the object it's orbiting. Like the orbit button which sets perfect orbit, this would make the object eventually land or hit the orbited object.