I have been searching and can't find anything to resemble this situation, and I was wondering if someone could help me.
I want to have at a certian point in time a spacecraft come from the surface of one of the exosolar planets and speed off towards earth at a tremendous speed, and end up in orbit or landed on the planet like an hours time later.
If something even remotely similar to this exists, could someone point me toward it? Or maybe help me make this happen? (I have no idea how to make an addon)