The 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.
Because the mass of the planet - its weight and size - create different degrees of gravity.
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.
Planets have different fields of gravity because their mass and size vary. The larger and more massive a planet is, the stronger its gravitational pull will be. The strength of gravity on a planet is determined by its mass and radius.
The planets are normally classified in size by their equatorial diameter.
• an atmosphere (though with different chemicals in them) • CO2 • a surface (they're terrestrial planets) • mass (though their masses are different) • volcanoes • greenhouse effect • craters
They are all bigger
No, they are the size of uranus ;)
The other planets are different from the earth in various ways. This includes distances from the sun, size, rotational speed, element composition and so much more.
Mercury and Jupiter are the two planets that are most different in size. Mercury is the smallest planet in our solar system, while Jupiter is the largest, with a size difference of over 11 times in diameter.
Because the mass of the planet - its weight and size - create different degrees of gravity.
Gravity differs on different planets because it is determined by the mass of the planet. The larger the mass, the stronger the gravitational pull. Each planet has a unique mass and size, resulting in different levels of gravity on each planet.
The size. Sturn is Much bigger. Saturn is not solid, Pluto is.
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.
They don't because their different in size, shape, and color
Planets have different fields of gravity because their mass and size vary. The larger and more massive a planet is, the stronger its gravitational pull will be. The strength of gravity on a planet is determined by its mass and radius.
The Earth and Venus are pretty close to being the same size (about 5% difference), and Uranus and Neptune are also pretty close to the same size (about 4% difference). All of the other planets are different.
Planets is the natural satellite of some accountable size orbiting the star.