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Because they are spread out naturally and there is no natural mechanism to make them cluster together because the Sun's gravity holds them in their own orbits.

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12y ago

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Why do different planets have different length orbits?

Different planets have different length orbits because they are at varying distances from the sun. The farther a planet is from the sun, the longer it takes to complete an orbit. This is due to the gravitational pull of the sun, which affects the speed at which planets travel around it.


What is the relationship between the distance of the planets from the sun and the time it takes to revolve around the sun?

there is no true relationship between distance from the sun and orbit time as some planets go revolves at a different velocity.


Why do different planets have different orbit times around the sun?

Different planets have different orbit times around the sun because they are at varying distances from the sun. Planets that are closer to the sun, like Mercury, have shorter orbit times, while planets that are farther away, like Neptune, have longer orbit times due to the gravitational pull of the sun affecting their speed of revolution.


What is the distance between planets?

The distances between the planets vary all the time since they all orbit the Sun at different rates.


Do planets collide when the distance of the planets from the sun change?

The distance of the planets from the sun does not change because of the gravity surrounding each planet is pulling them into continuous orbit.


Why do planets have different periods of revolution?

The planets are not all the same distance from the Sun, which determines how far they have to travel, and how fast they are moving. Planets farther from the Sun have much longer orbits and are not moving as quickly. So their period of revolution (year) is longer.


Why do the planets have years that are different lengths?

Because as they revolve in their orbits around the sun, every planet averages a different distance from the sun, and that's how gravity works.


What will happen if all the planets are same distance from the sun?

They would have banged into each other, split up, gone off in different directions and regrouped into planets with different orbits.


What are the rocky planets in order of their distance from the sun?

In order of their distance from the sun, the rocky planets are Mercury, Venus, Earth, and Mars.


How does the sun have gravity?

The sun has all the gravity to keep the planets a certain distance from the sun.


What are the differences between the outer planets?

The outer planets (Jupiter, Saturn, Uranus, Neptune) are larger and mostly composed of gas, while the inner planets are smaller and rocky. The outer planets are also much colder, have more moons, and are located farther from the Sun compared to the inner planets. Additionally, the outer planets have ring systems, while the inner planets do not.


Why are the planets going in different speed?

The speed that an object travels in its orbit depends on its distance from the sun. That's how gravity works.