Fifth planet (hypothetical) orbit as defined by the Titius–Bode law. Between 1845 and 1851, eleven additional asteroids were discovered and Jupiter had become the twentieth planet. At this point, astronomers began to classify asteroids as minor planets. Following the reclassification of the asteroids in their own group, Jupiter became the fifth planet once again. With the redefinition of the term "planet" in 2006, Ceres is now considered a dwarf planet. The disruption theory suggests that a planet which was positioned between Mars and Jupiter was destroyed, resulting in the asteroid belt between these planets. Scientists in the 20th century dubbed this hypothetical planet
Escape from the Planet of the Apes quite good." Arthur D. Murphy of "Variety" called it "an excellent film. Far better than last year's followup and almost as good as the original 'Planet of the Apes.'" Kevin Thomas of the "Los Angeles Times" wrote that the film "works largely because Miss Hunter and McDowall, working under Don Taylor's deft direction, are such gifted actors and because John Chambers' chimpanzee makeup is so convincing, as it was in the other pictures." David Pirie of "The Monthly Film Bulletin" wrote, "Infuriatingly, "Escape from the Planet of the Apes" continues the downward trend of a science-fiction series that started out