Why are there more craters on mercury than on venus earth and mars?

Answer 1

The earth has a atmosphere that protects us and most meteorites burn before they are able to make contact with the ground, and Mercury has no atmosphere like this and therefore has more craters.

Earth's surface is subject to weathering. Erosion obliterates surface features rather quickly, leveling entire mountains in as little as a hundred million years. In addition, sea floor spreading and subduction draws the sea floor beneath plate margins, eradicating any evidence of asteroid or cometary impacts there. We have a few big craters scattered here and there, but very few recognizable ones more than a hundred million years old.

Mercury, in contrast, is geologically stable. It has no atmosphere, and thus no rain. Few earthquakes or faults appear to trouble its surface. Any impact over the last four billion years remains on its surface, at least until another impact lays over the top of it.

Answer 2

Earth, Venus, and Mars all have or have had processes that alter and renew their surfaces. These process bury or destroy impact craters. Mercury has no such processes, so craters that formed even when Mercury was newly formed are still there.

Answer 3

Earth is a geologically active planet, the heat in its core moves the Earth's surface around and creates new oceans and mountains over time and these are eroded slowly by the processes going on in and caused by Earth's atmosphere.

On mercury there is no atmosphere and the planet no longer has a hot core causing its surface to be reworked,

Thus the craters made in Earth's surface are erased over time while those on Mercury are not.

Answer 4

since earth has a stronger atmospher the astroids can't touch the surface of the earth that is why mars has more craters

Answer 5

Mercury has no atmosphere, no water, and no geologic activity to erode, bury, and destroy craters. Earth does.