How are the perfectly round creators on mars created?

Question

Consider that there is not exactly perfictly round creators on earth (or is there?) so were these crators created by metiors plunging into the surface of the planet? or is there more to it?

when poulition and muck from within your body builds up and pushes its way through the skin, It causes a perfictly cretor with a built up edge, exactly like a cretor on mars.

could the cretors possibly be caused by a type of wast being expelled from the dead planet?

Answer 1

I wouldn't call the craters on Mars perfectly round as there are few such things as perfect. I am not aware of them being any more round than the one's on Earth, however. The craters on Earth have been subject to far more erosion than the craters on Mars and this is where much of the difference lies. Earth is also far more geologically active, contributing to later distortion of some impact craters. For example, it's thought that the Manicougan impact crater in Canada was originally smaller in diameter and may have expanded due to geological activity.

Answer 2

A crater formed by the collapse of the top of an extinct volcano is called a caldera. Mars does have these - Olympus Mons is the largest volcano in the solar system, and its caldera is larger than Rhode Island (if I remember correctly). It is also possible for molten rock to push up toward the surface, creating an upwelling in the ground but without creating a volcano (I forget what these are called), but these landforms don't look anything like craters.

All craters formed by rocks from space are essentially circular. That's because the rock from space pierces the surface and then explodes (there's more to it than that, but that's the gist of it), creating a round crater just as if a buried bomb exploded.

Many craters on Earth don't look perfectly circular anymore because of erosion and geological forces. Not much erosion happens on Mars since its atmosphere is so thin and there isn't any liquid water any more, it's geologically dead, and there's no life there.

Compare the craters on Mars to the craters on the Moon, where the only "erosion" is from more rocks from space.

Answer 3

Use the spell checker man!

Yes, there are round craters on Earth. Craters are made by meteor impact. A few craters are volcanic, but most are impact craters.

Answer 4

Maybe they have been formed due to the missiles launched by the Martians when they were engaged in an Interplanetary war which they sadly lost ?

Answer 5

http://www.maths.bris.ac.uk/~mardd/Pages/Research/shear_thickening/images/cornstarch.wmv