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
The Brain from Planet Arous classic. It has been parodied on American television like the comedy series "Malcolm in the Middle", which uses a segment of "The Brain from Planet Arous" as part of the opening credits. A clip was also used in the opening scene of the comedy film "Ernest Scared Stupid" as part of a collage of horror films. "The Brain from Planet Arous" is also featured in the film "The Butcher Boy" (1997), which is viewed by the main character at his local movie theater. The voice clip: from the film was used in the 1997 Jay Weinland track "Sound Stage Strut"