Fifth planet (hypothetical) Fifth planet (hypothetical) In the history of astronomy, a handful of Solar System bodies have been counted as the fifth planet from the Sun. Under the present definition of a planet, Jupiter is counted as the fifth. There are three main ideas regarding hypothetical planets between Mars and Jupiter. During the early 19th century, as asteroids were discovered, they were considered planets. Jupiter became the sixth planet with the discovery of Ceres in 1801. Soon, three more asteroids, Pallas (1802), Juno (1804), and Vesta (1807) were discovered. They were counted as separate planets, despite the fact that they shared an
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"