Why was the Moon the first planet for humans to explore the universe? What s on the Moon?

The moon can become the first planet to be explored by mankind, just because it is the closest to the earth, and exploring the moon is the easiest, there is nothing on the moon, just a dead planet.

The first is because the Moon is very close to our Earth, and the second is because there is nothing dangerous on the Moon, and so far, we have not found anything on the Moon.

The Moon is the only satellite of the Earth and the closest planet to the Earth in the entire universe, and these factors are destined to be the first stop of mankind on the way to the universe. The moon looked lifeless, without any signs of life. It feels very lonely, but there isn't a lot of atmosphere, so the starry sky must look quite beautiful.

If you use an astronomical telescope without the naked eye, you can see the craters on the surface of the moon more clearly, the stripes of Jupiter, the beautiful rings of Saturn, and you can also see Uranus and Neptune, but the requirements for astronomical telescopes are relatively high, and the general telescope **Neptune can only see one point, because the distance is too far, and if you just see a point, it doesn't make much sense, after all, it is similar to us looking up at the stars in the sky!

Under normal circumstances, there are five planets on Earth with the naked eye, they are Venus, Jupiter, Saturn, Mars and Mercury, of which Venus is the brightest and the brightest planet in the sky (except for the Moon), and it is easy to see Venus at night! Mercury is the least easy to see because it is so close to the Sun and looks faint against the Sun's powerful rings! Finally, being able to see a planet clearly is not directly related to the magnification, the most important thing is the caliber, theoretically as long as the caliber is large enough, you can see the planet at any distance!

What can be seen must be large, close, and bright. The invisible must be small and far away, and it is dim. The earth is closest to the moon and the sun, so they can see each other, and those planets are too far apart, so they can't see them.

However, in recent years, our space technology has developed beyond the times, from the space shuttle to the establishment of the space station, as well as our Tianwen spacecraft, all of which have landed on Mars, all of which have surpassed others, and we are second to none in the competition in space, which is the field of space exploration, which has moved to a new stage.

Other planets in the solar system can also be seen, but not as bright as the sun and moon, and Venus is a planet that can be seen. She can be seen in the west of the sky after sunset in summer, and in the eastern sky at dawn every day. Another reason why modern people are busy with work and have no time** is that cities are full of lights at night, and it is not surprising that some people think that other planets in the solar system are invisible.

I think it's because the Sun and Moon are brighter relative to other planets, and the Sun is bigger, and the Moon is closer to us, so we can see the Sun and the Moon but not the other planets.

Because among the planets in the universe, the sun and moon are the closest to the earth, and they are relatively large. And the sun gives people light, and the moon is the brightest star at night. It's all about emitting brightness.

And there are so many planets in the universe that we don't fully recognize them. So we can only see the sun and the moon.

Because they have light. The sun itself will shine, and the moon will also get the sun's rays, and we can see the brighter things.

Only the sun and moon are closest to our earth and will also affect our life on earth, and other planets are very far away and will not affect our life, so they will not be seen.

Because we can only see the sun and the moon with the naked eye, and the sun and moon are the closest to our planet.

Because the Sun is a star, it can shine and provide us with sunlight, so we can see the Sun, and the Moon is closest to us, so we can observe the Moon very clearly.

Space does not refer to the Moon. Space is the cosmic space outside the Earth's atmosphere. Space, which the Chinese dictionary explains as extremely high sky.

The International Aeronautical Federation (IAF) in Geneva, Switzerland, defines the boundary between the atmosphere and space: the boundary between 100 kilometers (about 62 miles) above the Earth's sea level is called the Kármán line. The Kármán line is named after the American scientist Theodore von Kármán.

Geophysicists divide atmospheric space, or airspace, into 5 layers. The troposphere has dense air called a dense atmosphere. The dense atmosphere becomes thinner and thinner as the altitude increases.

stratosphere, between 10 thousand and 40 thousand kilometers. Mesosphere, 40 km - 80 km. 80 km to 370 km is the thermosphere, which belongs to the lower part of the ionosphere.

The outer atmosphere, more than 370 kilometers of space, belongs to the upper part of the ionosphere. From the Earth's surface to an altitude of 100 kilometers, there is less and less air as the altitude increases. About 75% of the atmosphere above the Earth is in the troposphere and 97% below the stratosphere.

The moon is also known as the sun yin, commonly known as the moon. It is the only natural satellite of the Earth, the closest celestial body to the Earth, and the most thoroughly studied celestial body. The only celestial body that humans have ever visited in person is the Moon.

The Moon is the most obvious example of a natural satellite. In the solar system, except for Mercury and Venus, all other planets have natural satellites. The age of the Moon is about 4.6 billion years.

The Moon has a layered structure such as a shell, mantle, and nucleus. The average thickness of the outermost lunar crust is about 60-65 km. Below the lunar crust to a depth of 1,000 km is the lunar mantle, which occupies most of the moon's volume.

Underneath the mantle is the lunar core, which is about 1000 degrees warm and most likely molten. The diameter of the Moon is about 3476 km, which is 3 11 of the Earth and 1 400 of the Sun. The volume of the Moon is only 1 49 of the Earth, and the mass is about 735 billion tons, which is equivalent to about 1 81 of the Earth's mass, and the gravity of the lunar surface is almost 1 6 of the Earth's gravity.

There are dark parts and bright areas on the surface of the Moon. When the early astronomer Takaga observed the moon, he thought that the dark areas were covered by seawater, so he called them "seas". The famous ones are the sea of clouds, the wet sea, the still sea, etc.

The bright part is the mountains, which are dotted with craters. Located near Antarctica, the Bailey crater is 295 kilometers in diameter and can fit the entire island of Hainan. The deepest mountain is Newton's crater, which is 8,788 meters deep.

In addition to craters, there are also ordinary mountains on the lunar surface. Mountains and deep valleys are stacked on top of each other, creating a unique scenery.

The far side of the moon map The front of the moon is always facing the Earth, and the reason for this is the result of the long-term action of the tides. On the other hand, the far side of the Moon is mostly invisible from the Earth, except in the area near the edge of the Moon's surface which is visible in the middle due to the movement of the scales. In the days when there were no probes, the far side of the moon has always been a world of unforeseen knowledge.

One of the great features of the far side of the Moon is that there are almost no fainter lunar features like the Lunar Sea. And when an artificial probe runs to the far side of the moon, it will not be able to communicate directly with Earth.

Moon. Commonly known as the moon, also known as Taiyin and Xuantu in ancient times, it is the only natural satellite on the earth and the solar system.

The fifth largest satellite. It does not emit light because the surface reflects sunlight and emits light. The Moon is the only natural satellite on Earth.

The surface of the moon has a complex structure. The bright parts of the front of the Moon that can be seen with the naked eye are the mountains and plateaus on the surface of the Moon. In addition, the surface of the Moon is covered with a layer of lunar dust and rock fragments of varying thicknesses.

Lunar dust is a layer of viscous dust that covers from the surface to a depth of several tens of millimeters. It has been found that there are nearly 60 types of closed-rush minerals on the Moon, 6 of which have not yet been found on Earth. So what is the inner structure of the Moon? As scientists only shoot through ** waves.

The spread of understanding the internal structure of the Earth.

Similarly, scientists understand the interior of the Moon through the propagation of lunar waves.

American Apollo.

The records provided by the lunar instrument brought to the moon by the spacecraft indicate that the moon is a relatively calm world. On average, every Earth day.

There is about one occurrence of the Moon**, and ** is often faint if it is not a sedan mountain. The largest is only level 1-2. The focal area is quite deep. At locations between 500 km and 1000 km, in addition to the Moon**, the Moon's magnetic field, gravity and its variations and electrical conductivity.

The study also provides valuable information. The interior of the Moon and its surface can be divided into four layers: the lunar surface, the lunar crust, the lunar mantle, and the lunar core.

Among them, the lunar surface is the surface layer of the internal structure of the moon, including the area from the lunar surface to a depth of about 2km, which is mainly composed of plagioclase, dust and other lunar rock fragments; The lunar crust is the upper part of the internal structure and has a thickness of 605-650 km. According to the type and nature of the lunar rock, it is divided into upper and lower layers, the upper layer is about 250 km, and the lower layer is about 300-400 km; The lunar mantle is the middle part of the Moon's internal structure and the largest part of the entire Moon's volume. It starts at a depth of 65 km and extends to about 1,388 km, covering 76% of the Moon's radius; The lunar core is located about 1,388 kilometers below the center of the moon.

The temperature is about 1600 °C and it may be in a molten state.

It is mainly composed of iron, nickel, sulfur and other substances. Since ancient times, our exploration of the moon has never stopped!

The surface of the moon is full of pits, and the moon is rich in many mineral resources. So the exploration of blind pants on the surface of the moon has been going on all along. The surface of the moon is mountainous.

There are shady parts of the moon and bright areas of hail on the moon. When early astronomers observed the moon, they thought that the dark areas were covered with seawater, so they called them "seas". The famous liquid stuff is the sea of clouds, the wet sea, the still sea, etc.

The bright part is the mountains, which are full of craters.

It is a moon, also known as the moon. It is known as the moon as seen by the human eye. In ancient times, it was also known as Taiyin, Xuantu, Danjuan, and Panyu.

It is a satellite of the Earth and the fifth largest moon in the solar system. The Moon is about a quarter of the diameter of the Earth and about one-eighty-one times the mass of the Earth. 1.

The moon belongs to the moons. The moon, the name of the celestial body, is called the moon as seen by the human eye. In ancient times, it was also known as Taiyin, Xuantu, Danjuan, and Panyu.

It is a satellite of the Earth and the fifth largest moon in the solar system.

2.The Moon is about a quarter of the diameter of the Earth and has about 81% of the Earth's mass. The Moon is the largest known satellite of the Earth, and its surface is covered with craters formed by the impact of small celestial bodies.

3.The average distance between the Moon and the Earth is about 10,000 kilometers, which is about 30 times the diameter of the Earth.

Satellite.

The Moon belongs to satellites. The Moon is a satellite of the Earth and is the fifth largest moon in the solar system.

The Moon is about a quarter the diameter and about eighty-one times the mass of the Earth, and the Moon is the most massive moon known to Earth.

The Moon is a satellite of the Earth. A satellite is a natural or man-made object that orbits a planet, and the Moon is the most obvious example. In the solar system, except for Mercury and Venus, all other planets have natural satellites.

The total number of known natural satellites (not counting the fragments that make up the planetary rings) is at least 40. Saturn has the most natural satellites.

Introduction to the Moon

The Moon is the only natural satellite of the Earth, probably formed about 4.5 billion years ago, and shortly after the formation of the Earth, there are several hypotheses about its origin, and the theory supported by more factual evidence is that it formed from the debris of a huge collision between the Earth and the Mars-sized celestial body "Theia", which gathered in the outer periphery of the Earth.

The front side of the moon is dotted with huge impact craters filled with basalt lava flows ejected from dark volcanoes, forming a vast plain called the "Moon Sea", in fact, there is not a drop of water in the "Moon Sea". The outer perimeter of the Moon Sea and the matching opening of the Moon Sea are interspersed with bright, ancient plagioclase highland prunes and conspicuous impact craters.

It is the brightest object in the sky other than the Sun, and although it appears a very bright white, its surface is actually very dark and the reflectivity is only slightly higher than that of old asphalt. Because the moon is very conspicuous in the sky, coupled with the regular changes of the moon phases, it has had a significant impact on human culture such as myths and legends, religious beliefs, philosophical thoughts, calendar compilation, literature and art, and customs and traditions since ancient times.

Space is not the Moon, which refers to the cosmic space beyond the Earth's atmosphere with a visual area of 120,000,000 light years, while the Moon refers to the Moon, which is a natural satellite of the Earth that rotates counterclockwise around the Earth with a radius of about kilometers. The following is the answer to "Is space the moon?", friends who are interested in the relationship between space and the moon can read on to understand.

1. The moon is located in the dust of space, space is not the moon, space and the moon are two different concepts.

2. Space, also known as the universe, can be divided into five layers: troposphere, stratosphere, mesosphere, thermosphere, and outer atmosphere.

3. Space is a high-vacuum, microgravity environment, and the temperature is constantly decreasing, with an average temperature of .

4. The Moon is spherical in shape, which may have been formed about 4.5 billion years ago, and the surface may have been formed by the impact of small celestial bodies.

Space does not refer to any planet, but to the entire empty lead space outside of atmospheric space, where there are spacecraft, space stations, manned spacecraft.

The above is the answer to the question "Is space the moon", there is not only the moon in space, but also Venus, Jupiter, meteors, dust, rays, etc. The Moon is the fifth-largest moon in the solar system, with an average distance of about 10,000 kilometers from Earth.