Jacob settles down for a long afternoon in front of the tv, unaware of the fact that he is just about to discover the planet Pluto.     Clyde Tombaugh speaks: "PLUTO SEEMED TO BE THE MOST LOGICAL NAME. SEE, MOST OF THE NAMES OF THE MYTHOLOGICAL DEITIES HAD ALREADY BEEN GIVEN TO THE ASTEROIDS, AND THERE WEREN'T VERY MANY GOOD ONES LEFT. " "AND OF COURSE, YOU MAY OR MAY NOT REALIZE, THE FISSIONABLE ELEMENT PLUTONIUM WAS NAMED PLUTONIUM BECAUSE WE NAMED THE PLANET PLUTO. "