Jupiter and Exo Planets in the Solar System

Raymond: Jupiter plays a major role in influencing what kinds of space objects crash into earth. He says jupiter's gravity determines how comets enter the inter solar system and how long they spend near the planets, before launching them into interstellar space. Raymond: Jupiters have orbits that deviate from near circularity are called eccentric. The more squashed out they get, the more highly eccentric they are -  like a rubber band.