A long time ago, probably 4.6 billion years ago, there was a huge cloud of dust and gas particles suspending in space. When a star nearby exploded with a supernova, the force stirred up the dust cloud and cause the cloud to spin. As it spins, heavier dust particles began to collect in the center of the disk of cloud, and the lighter particles are on the sides. The heavy particles collided with each other and created a protostar, an early form of star. The smaller clumps on the outer ring of the disk began to collect material to form the planets. When the temperature and pressure within the protostar is high enough, nuclear fusion began and our sun was ignited. Since the entire spinning disk of clouds was rotating in one direction - counterclockwise when viewed from the North Pole, the planets orbited the sun and the sun rotated in the same direction. It is true for the previous poster to mention that the course of the orbit would only be changed if another body impacts the planet. But if the body is large and fast enough to impact a planet to revolve around the sun in the opposite direction, it might as well be bumped out of its orbit and sent on a course away from the solar system. It is believed to be true that a minor collision could have tipped the planet over on its side, such as Uranus, and even flipped the rotation direction of the planet entirely, like Venus.
2006-06-07 17:37:33
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answer #1
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answered by TheAlakazam 2
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for dv, Venus rotates around it's axis in the opposite direction but circles the Sun in the same direction. Uranus' axis is nearly horizontal, but it rotates in the same direction.
Back to the question: the current belief with regard to the history of our solar system states that the planets were formed from a huge disk of dust and debris which rotated around the sun billions of years ago. The only thing that can change the direction would be a collision, however, that is not proven either.
2006-06-07 14:42:48
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answer #2
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answered by Anonymous
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I think it's the same reason all the stars rotate the same direction in the galaxy. There was just a big mass of spinning crap, and it formed what is now planets and the sun.
2006-06-07 12:40:26
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answer #3
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answered by wordnerd27x 4
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im not sure but i do believe that venus and uranus go around the sun in the opposite direction as that of the other planets.
2006-06-07 14:01:39
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answer #4
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answered by dv_vignesh 2
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each and every planet's orbit revolves around the daylight interior of the same route, yet no longer each and every planet revolves interior of the same route. There are some that are retrospective. each and every planet is a a variety of of distance from the daylight so it takes longer for some planets to make an entire revolution.
2016-12-06 11:47:52
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answer #5
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answered by lashbrook 3
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See 3.2 in the page below. The solar system formed from a rotating cloud of gas.
2006-06-07 12:44:57
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answer #6
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answered by daisy519 4
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cause the world is heliocentric and gravity keeps the planets up like that
2006-06-07 12:39:38
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answer #7
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answered by danielitshakov 2
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they dont move together tho........maybe this has to do sumthin with gravity
2006-06-07 12:39:59
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answer #8
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answered by Anonymous
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