What did people use as vehicles when they came to the moon? How did they survive? Eat food.

"The earth is the cradle of mankind, but mankind will not live in the cradle forever." - (Russian) Tsiolkovsky

The twentieth century is the first in the history of mankind the most glorious century since. In this century, for the first time, human beings have left their cradle, the earth, and left their footprints on the moon, where human beings have cherished their beautiful dreams for thousands of years. With the advent of the 21st century, mankind's march into space will be greatly accelerated. The primary goal is to establish a space base on the moon and immigrate to the moon.

Moon immigration must first solve a series of basic problems such as life support, lunar life and work on the moon, such as the supply of water, air and food, the protection of cosmic radiation and the adaptation of lunar gravity. . Among them, the water issue is the most critical.

In January 1998, the "Lunar Prospector" probe was launched. It flew around the moon for 2 months and found signals showing the characteristics of water molecules at the north and south poles of the moon, proving that there is a large amount of frozen water on the moon. This water may have been brought by meteorites or comets. The estimated reserves are 40 million to 1.2 billion tons, which can be used by at least 2,000 people for more than 100 years.

With water, as long as oxygen and nitrogen are extracted from the moon's soil to synthesize air and a closed ecological cycle system is established, plants and animals can be grown on the moon, and the problem of food supply can be solved. Easy to solve.

The location of the future lunar base has two basic requirements: one is close to the water source near the lunar poles, and the other is sufficient sunlight to provide solar energy. Since the geological structure of the moon's surface is much more stable than that of the earth, with the support of future technology, it is possible for humans to give full play to their imagination and creativity to build their own magnificent and comfortable lunar home.

With the support of the life support system, people can exploit the rich resources of the moon and use the lunar surface environment such as high vacuum, strong radiation and low gravity to conduct scientific research in life sciences, astronomy and high-energy physics. As the bridgehead for mankind to enter space, the moon will provide most of the raw materials for building future space cities, high-orbit space stations, spaceports and other planetary bases.

The moon is the closest celestial body to the earth. Its gravity is only one-sixth that of the earth. The soil contains 40% oxygen, which can be used as rocket fuel. This makes the moon the most ideal space activity for mankind. bases and transfer stations. After colonizing the moon, humans can use rockets with smaller thrust to launch heavier spacecraft, which is much cheaper than launching from the earth.

The moon is also rich in helium-3, which is an ideal raw material for nuclear fusion reactions. There is no such resource on the earth. This unique treasure can not only provide sufficient non-toxic and non-radioactive energy for the lunar base, but may also serve as the best fuel to provide powerful power for future nuclear spacecraft, helping mankind truly realize the dream of "space navigation" .

On a certain weekend in the 21st century, people on the earth may forget the busy week and take a convenient "space bus" to the space transfer station in the earth's orbit. "Earth-moon flights" are sent out regularly to travel to the lunar base for vacation and to visit relatives and friends. At that time, the word "moon" might only be found in history books, because the moon had become the eighth continent on the human map - Moon Continent.