Our planet - Earth - from space looks like a beautiful glowing blue ball. Many artificial satellites revolve around it, and only one natural one - called the Moon. It is the brightest object that we can observe in the night sky. Although there are about 400 thousand kilometers between the Earth and the Moon, they are closely related and capable of influencing each other. The moon interacts with all earthly nature, activating, for example, the ebb and flow of the sea. However, these two celestial bodies have quite a lot of differences from each other. What are they? Let's try to give an answer.
Moon - the only natural satellite of the planet Earth.
Earth is the only one of all the planets of the solar system on which there is life.
The Earth is 81 times the mass of the Moon. The radius of the moon is about three and a half times smaller than the radius of the earth.
The earth is surrounded by the geosphere - a gaseous envelope with various impurities. There is practically no atmosphere on the Moon, no oxygen, no wind. Therefore, during the day, the surface of the Moon from the scorching Sun heats up to 120 ° C, and at night it can cool down to –160 ° C. During the day it is light on Earth, at night it is dark. On the moon, even during the day, the sky is always black and cloudless: with the bright sun, the sky is strewn with stars. From Earth, the sky looks blue: this color is given to it by air. The sun's rays are scattered, and the stars are not visible during the day. The Earth reflects sunlight about 50 times more strongly than the Moon.
Most of the Earth is occupied by seas and oceans, less - continents and islands. The lunar surface is made up of mountainous terrain and lunar seas (huge craters with solidified lava). Lunar mountains are most likely formed after huge meteorites collided with the surface, while mountains on Earth are the result of tectonic processes. The moon is covered with a mixture of rocky debris and fine dust, the so-called regolith, up to several tens of meters thick. On the Moon, unlike the Earth, there is no volcanic activity and practically no water (except for small reserves of ice). The earth's surface is constantly exposed to water and wind, the surface of the moon is not washed out or eroded.
The Moon's magnetic field is very weak. On the Moon, the force of gravity is six times less than on the Earth. The chemical composition of both the Earth and the Moon is different. For example, the Earth contains a fairly large amount of iron, while there is practically no iron on the Moon.
- The Earth is 81 times heavier than the Moon.
- The radius of the Moon is on average 3.5 times less than the radius of the Earth.
- The Earth has an atmosphere, oxygen, water, and hence organic life. There is none of this on the moon.
- During the day it is light on Earth, you can see the blue sky, but at night it is dark. On the moon, the sky is always black, cloudless.
- The Earth reflects sunlight about 50 times stronger than the Moon.
- The surface of the Earth is occupied by continents, oceans, seas and islands. Mountains and lunar seas (giant craters) are formed on the lunar surface.
- On the Moon, the force of gravity is six times less in comparison with the Earth.
- The Earth has a magnetic (geomagnetic) field, while the Moon has almost none
- The chemical composition of the two astronomical objects is different.