Fifth planet (hypothetical) into the Sun. Unlike the Disruption Theory's fifth planet, "Planet V" is not credited with creating the asteroid belt. The concept of a fifth planet which had been destroyed to make the asteroid belt, as in the Disruption Theory, has been a popular one in fiction. 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,
Third from the Sun have been waiting in the car, watch as Carling orders them out. Jody suddenly throws the car's door open, knocking the gun from Carling's hand and giving the men enough time to overpower him. The group rushes into the ship, fighting off the guards that rush them. Later that evening, the group has safely escaped their doomed planet and are on course. Sturka comments that he cannot believe that there is a planet full of people like themselves. Riden smiles as he points out on the ship's viewer their mysterious destination, 11 million miles away—the third planet from the Sun,