The solar system is something that still remains a mystery for us. Our little minds are still busy exploring the mere origin of this vast universe. Yet, when a piece of this huge jigsaw falls in place, something new is implored, further adding to the confusion. All of us had our share of learning the Mnemonic ‘My Very Educated Mother Just Served Us Nine Pizzas’ in order to remember the name of planets and then recently we had to unlearn the ‘Pizzas’ for the exclusion of Pluto. Blame it on the Gods who created such a mysterious wonder or the scientists who have taken it on themselves to further mystify it in an attempt to solve the puzzle; the space is still the most controversial of probably all topics discussed on the third planet of the solar system.
The newest theory proposed recently says that Uranus the seventh planet and Neptune, the eighth and the farthest planet had exchanged their positions about four billion years ago. This theory by Steve Desch, an astrophysicist with the Arizona State University provides almost a stark contrast to all the previous theories on the origin of the solar system. According to this theory all the gaseous giant planets took shape twice as close to the sun as they are at present. Having said this he had to then explain the positions of Uranus and Neptune, as the size of Neptune outweighs that of Uranus and therefore should have been second last in the order. Explaining this Desch said that gravity played a role here, and due to the gravitational pull of some of the asteroids or meteoroids the planet of Neptune must have got pulled away.
However, he completely acknowledges the fact that he might not be able to completely prove his theory, but the evidences sure have a story to reveal.
Via: MSNBC
