Seeing as Jared had expressed such a strong interest in exoplanets throughout our course, and he had worked so hard on his assignment, we're wrapping up the section on exoplanets with a PBS Nova documentary that came out in 2014. As always, we pause at regular intervals, so that we can discuss the numerous points and questions that Jared brings up. We also discussed again how the orbital period of a planet around a parent star is directly related to its distance from the star (the closer in it is, the faster it will orbit the star) and that its distance is the only variable (once the mass of the parent star is known). One gets to this simply by equating the gravitational force between two objects (Newton's laws of gravitation) with the force an orbiting object experiences due to centripetal acceleration.