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 Man from Planet X moor. Meanwhile, the scientist only wants to exploit the spaceman's specialized knowledge for his own selfish ends. A spaceship from a previously unknown planet lands in the Scottish moors, bringing a humanoid alien to Earth near the observatory of Professor Elliot (Raymond Bond), just days before the mysterious Planet X will pass closest to our planet. When the professor and his friend, American reporter John Lawrence (Robert Clarke), discover the spaceman, they help it when it is in distress and try to communicate with it, failing in their attempt. They leave, and the alien follows them. A colleague of the