"For a guy like me to be very eccentric, to even go to extremes to write a children's book with all the wild things I do and make it believable was pretty much incredible, " Rodman said.
One way they could have got there is if multiple planets have interacted in a gravitational "billiards game", in which one planet might have been flung in towards the parent star (sometimes to be swallowed whole), while another might have been thrown into an eccentric orbit, or perhaps even ejected from the system altogether.