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W/o an atmosphere to erode them, they stay fresh.
because scientists now know the age of the moon, they can count the number of impacts craters to find the rate of the cratering science the birth of our solar system. by knowing the rate of crating, scientists are able to use the number of the craters on any body of water to estimate how old the body of water is. this is easier because sceintsts don't need to bring back the rock to find out.
What else can I help you with?
This holds a planet's atmosphere close to its surface?
Gravity holds a planet's atmosphere close to its surface. The gravitational force of the planet's mass prevents the gases in the atmosphere from escaping into space. Without gravity, the atmosphere would disperse into space.
Is there any kind of wind or rain on the moon?
There is no significant atmosphere on the moon, so there is no wind or rain like we experience on Earth. The moon's surface is exposed to harsh temperatures and space conditions, without any protection from an atmosphere.
How does knowing the age of a lunar rock help astronomers estimate the age of the surface of a planet with no atmosphere?
Because there is no atmosphere, no erosion has taken place, so lunar rocks are the same today as they were when they (and the Moon) were formed.Also to what this other person wrote:By knowing the rate of cratering, scientists are able to use the number of craters on the surface of any body to estimate how old its surface is-- without having to bring back rock samples. The lunar rocks brought back during the Apollo missions were found to be about 4.6 billion years old. Because these rocks have hardly changed since they formed, we know the solar system itself is about 4.6 billion years old.
Why does the moon have larger craters than the earth?
The Moon has no atmosphere to protect it. A meteorite that would have burned up on entry on its way to Earth would hit the moon. Also, without atmosphere there's no erosion to fill the crates in and smooth them out. Without any water, more of the Surface is visible.
What is an airless moon?
An airless moon is a moon that does not have an atmosphere. Without an atmosphere, there is no air or weather on the moon's surface. Examples of airless moons in our solar system include Earth's moon and many of the moons of the outer planets.
How would earth be diffent without the atmosphere?
Without the atmosphere, Earth would be exposed to harmful UV radiation from the sun, leading to extreme temperature fluctuations between day and night. There would be no protection from meteoroids, creating constant impacts on the surface. Also, breathing would be impossible due to lack of oxygen and air pressure.
This holds a planet's atmosphere close to its surface?
Gravity holds a planet's atmosphere close to its surface. The gravitational force of the planet's mass prevents the gases in the atmosphere from escaping into space. Without gravity, the atmosphere would disperse into space.
Why do many meteoroids strike mercury's surface?
When objects enter an atmosphere, they get very hot and would burn up due to friction. Mercury, however, does not have a atmosphere that can block meteoroids, so it is continually battered by space rocks.
What happens if there was no atmosphere?
We would all die because without it we would have no air to breathe.
What happens to the impact on the surface of bodies without atmosphere?
W/o an atmosphere to erode them, they stay fresh. because scientists now know the age of the moon, they can count the number of impacts craters to find the rate of the cratering science the birth of our solar system. by knowing the rate of crating, scientists are able to use the number of the craters on any body of water to estimate how old the body of water is. this is easier because sceintsts don't need to bring back the rock to find out.
On average how much of the sun and energy is absorbed by Earth and atmosphere and clouds without reaching Earth and surface?
Roughly 30% of the incoming solar energy is reflected back to space by clouds, the atmosphere, and the Earth's surface. Another 20% is absorbed by the atmosphere and clouds before reaching the Earth's surface, leaving only about 50% to be absorbed by the Earth's surface.
Why is Mercury so heavily cratered?
Mercury is heavily cratered because it has virtually no atmosphere and because the surface is geologically inactive, and has been for a protracted period. Without atmospheric weathering or geologic reworking of the surface, any craters become permanent features of the planet.
Is there any kind of wind or rain on the moon?
There is no significant atmosphere on the moon, so there is no wind or rain like we experience on Earth. The moon's surface is exposed to harsh temperatures and space conditions, without any protection from an atmosphere.
Can both erosion and weathering occur on the moon or other planets?
Erosion and weathering are processes that can occur on the Moon and other planets with atmospheres. On bodies without an atmosphere like the Moon, other processes like micrometeoroid impacts and solar wind can cause surface modifications that are analogous to erosion and weathering.
Why is Earth's atmosphere mainly heated from the ground up?
Solar radiation mostly passes through the atmosphere without heating it, due to its wavelength. It does not pass through the ground, however, and it heats the ground. The ground emits radiation at a wavelength dependent on its temperature. This radiation happens to be in the thermal infrared part of the spectrum, or in other words, sensible heat. Therefore, the atmosphere is heated by the surface, whereupon the heat tends to rise and heat the lower atmosphere.
What is ice deposited by the atmosphere on a surface that is below freezing?
The ice deposited by the atmosphere on a surface that is below freezing is known as frost. Frost typically forms when water vapor in the air comes into contact with a cold surface and freezes without first becoming liquid.
Why is there no weather where there is no atmosphere?
Weather is the result of interactions between the atmosphere, sun, and Earth's surface. Without an atmosphere, like on the Moon, there is no medium for weather phenomena such as clouds, wind, or precipitation to occur. Therefore, in the absence of an atmosphere, there is no weather.
