The cosmos offers us many mysteries that astronomers are still struggling to solve, but there is one that is in our own solar system and remains unexplained – why do Venus and Uranus rotate in different directions from the other planets in the solar system? Venus rotates from east to west, while Uranus is so inclined that it practically rotates on its side. Every other planet, including Earth, rotates from west to east, and scientists have not yet determined why. The planets must rotate in one direction because the solar system was formed by the collapse of a hot cloud...