What is the primary source of erosion on the moon

Why Does the Moon Have Craters?

what is the primary source of erosion on the moon

Erosion and Weathering for Kids -Causes and Differences

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The geology of the Moon sometimes called selenology , although the latter term can refer more generally to " lunar science " is quite different from that of Earth. The Moon lacks a significant atmosphere , which eliminates erosion due to weather ; it does not have any form of plate tectonics , it has a lower gravity , and because of its small size, it cooled more rapidly. The complex geomorphology of the lunar surface has been formed by a combination of processes, especially impact cratering and volcanism. The Moon is a differentiated body, with a crust , mantle , and core. Geological studies of the Moon are based on a combination of Earth-based telescope observations, measurements from orbiting spacecraft , lunar samples , and geophysical data.

The first footprints put on the moon will probably be there a long, long time maybe almost as long as the moon itself lasts. Unlike on Earth, there is no erosion by wind or water on the moon because it has no atmosphere and all the water on the surface is frozen as ice. Also, there is no volcanic activity on the moon to change the lunar surface features. Nothing gets washed away, and nothing gets folded back inside. However, the Moon is exposed to bombardment by meteorites, which change the surface. One little spacerock could easily wipe out a footprint on the moon.

An asteroid or meteor is more likely to fall toward Earth than the Moon because our planet's stronger gravity attracts more space debris. But we can see many thousands of craters on the Moon and we only know of about on Earth! Why is that? The truth is both the Earth and the Moon have been hit many, many times throughout their long 4. The main difference between the two is that Earth has processes that can erase almost all evidence of past impacts.

Footprints in the Dust: The Lunar Surface and Creationism

In many ways the Moon is a geologic Rosetta stone: an airless, waterless body untouched by erosion, containing clues to events that occurred in the early years of the solar system, which have revealed some of the details regarding its origin and providing new insight about the evolution of Earth. Although they also posed new questions, the thousands of satellite photographs brought back from the Moon have permitted us to map its surface with greater accuracy than Earth could be mapped a few decades ago.

Geology of the Moon

Water slides into cracks and pores in rock and causes the rock to break into smaller pieces. That process is called weathering. There are two primary weathering mechanisms: freeze-thaw and chemical weathering. Water is critical for both of those processes, and there's plenty of water on the Earth. Space probes and scientific analysis indicate that there's no liquid water on the moon. That means that there's no weathering on the moon -- at least not in the way people think of it on Earth.

Perhaps the strongest, most appealing claim that the creationists have put forth against evolutionary timescales is the rate of infall in interplanetary dust into the terrestrial atmosphere. Frank Awbrey, in this journal, has detailed the arguments put forward in the creationist tracts on the age of the earth. There are, however, a few points which should be added, especially concerning the nature of the lunar surface, since it is also a useful lesson in the workings of scientific argument and the reasons for space exploration in the first place. Measurements of the rate of infall of meteoritic material were first accomplished using the U-2 as a collection device, and by measuring the amount of contamination by interplanetary material in dust falling atop Mauna Loa. First, notice that the figure is considerably higher and more uncertain for the Earth.

Erosion on earth occurs mainly because of the action of wind, water and rain. On the moon, however, there is not atmosphere, so no weather. Instead, tiny dust particles impact the surface of the moon from space. These particles hit the Earth as well, but burn up in the upper atmosphere. On the moon there is no atmosphere, so they hit the surface. The lack of weather on the moon is the reason erosion is so slow, and we can see features that are millions and even billions of years old.

How Long Do Footprints Last on the Moon?


The moon's main source of erosion is micrometeorites.
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  1. Finley R. says:

    How Long Do Footprints Last on the Moon? | Space

  2. Jeff G. says:

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  3. Fabrice V. says:

    Why Does the Moon Have Craters? | NASA Space Place NASA Science for Kids

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