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The theory is the sun burned away matter from the inner planets, which is why these four are small rocky worlds. Mercury is very small but dense. Venus is almost as big as earth. Then comes earth, and Mars is quite a bit smaller than earth. Next is Jupiter, the first and king of the gas giants. Jupiter is more massive than all the other planets combined, over 300 times the mass of earth. Saturn is the next largest planet, followed by Neptune and Uranus.
Wiki User
∙ 12y ago
Wiki User
∙ 12y agothere are larrger planets because they where made of bigger clumps of rock and some planets have different types because there where made of of different types of rock like Jupiter was made huge because of huge rock clumps
Wiki User
∙ 12y agoThe theory for our solar system is that the solar wind blew the lighter elements out beyond 3 astronomical units. The inner planets coalesced out of the heavier elements that remained.
Most of the solar systems we have found so far consist of large gas giants orbiting close to their primary star, so this theory does not account for that.
When you look at the rocks in a creek, you notice that some are smaller and some are larger. Lots of them are very small, and a few tend to be very large. There is no reason they should all be the same size.
Wiki User
∙ 13y agoThere is no reason why they should be the same size.
When the planets formed in the solar disk, lighter elements collected at the outer rim and formed the gas giants. Heavier material collected closer to the Sun and formed the terrestrial planets. Their size is determined by the ratio of the various elements that happened to make up the solar disk.
Wiki User
∙ 11y agoplants grow and develop in different ways which causes them to be different sizes
Wiki User
∙ 13y agobecause space is the dumbest thing ever
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What are the differences between the outer planets?
they are from different sizes, have different amount of satellites, and different distance from the sun.
How the sizes of the inner planets compare to the sizes of the gas giant planets?
The inner planets are smaller than the gas giant (outer) planets.
How do the sizes of the inner planets compare to the sizes of the gas giant planet?
inner planets are small and outer planets are big and cold and gas giants.
Does the size of a planet has any impact on the eccentricity of a planets orbit?
No but the sizes of OTHER planets and planetesimals can and do.
What is the general statement that compares the sizes of the terrestrial planets to those of the jovain planets?
terrestrial planets are denser and smaller while thejovial planets are gaseous and much larger.
What is different about the inner planets?
they are all different sizes
Are the planets different sizes and shapes?
No, they are the size of uranus ;)
How are planets different?
There are many ways the planets are different. One way is that they all have different gravity levels, they are all different shapes and sizes. Lastly that they are different temperature, and different material.
What are the differences between the outer planets?
they are from different sizes, have different amount of satellites, and different distance from the sun.
How the sizes of the inner planets compare to the sizes of the gas giant planets?
The inner planets are smaller than the gas giant (outer) planets.
Are asteroids mostly round like planets or are they all different shapes?
Asteroids are all different shapes and sizes.
How do the sizes of the inner planets compare to the sizes of the gas giant planets?
inner planets are small and outer planets are big and cold and gas giants.
How do the sizes of the inner planets compare to the sizes of the gas giant planet?
inner planets are small and outer planets are big and cold and gas giants.
Do planets and moons come in all sizes and colors?
Yes. Planets and moons come in all sizes and colors.
How do the sizes of inner planets compare to the sizes of gas giants?
The sizes of inner planets are generally smaller compared to the sizes of the gas giants. The inner planets are Mercury, Venus, Earth and Mars. The gas giants are Jupiter, Saturn, Uranus and Neptune.
How do the sizes of the four inner planets compare?
they are small
Does the size of a planet has any impact on the eccentricity of a planets orbit?
No but the sizes of OTHER planets and planetesimals can and do.
