We want to dedicate our site to the advice and training of our children. I would like to start by saying that we will teach children about the cosmos and everything connected with it! You ask why it is from the space theme, everything is simple, this is the most unknown thing that surrounds us, and as a young father, a child often asks questions related to outer space, stars and constellations, and of course about life somewhere far, far away...
So, let's begin :-)
Of all the planets in the solar system, scientists have studied Mars the most. As a result of the research, interesting facts became known.
It was formed about 4.5 billion years ago. The scientist Galileo Galilei discovered the planet back in 1609 when he saw it through a telescope. It received its name in honor of the Roman god of war, because the color of its soil is painted red. Some areas have a blue tint. As well as sunrises and sunsets are painted in blue tones.
The planet rotates around its axis in an easterly direction and has a diameter of 2 times, and a mass of 10 times less than that of the Earth.
Recently, researchers have taken many pictures from the surface of the planet, which allowed NASA employees to establish new interesting facts about Mars. They claim that the unusual color is due to the presence in the upper layers of the surface of a large amount of iron oxides, which provoked the complete disappearance of water.
Mars has a volcano Olympus, which is considered the largest in the entire solar system. Its height is 27 km. This is 3 times more than Everest. The peak has a depression diameter of 90 km.
The Martian giant is visible from Earth as a white spot. Therefore, before it was called "Snow of Olympus."
The origin is associated with the fall of a huge number of meteorites in the Farsid region. Here is a whole mountain range Halo Olympus, which includes:
Povonis and Askerice volcanoes.
The diameter of this mountain system is about 1000 km.
Life on the planet
There is a hypothesis that ancient civilizations once lived on the planet. This is evidenced by the following interesting facts about Mars:
Earth's distance from Mars
Recently, the issue of the colonization of Mars by people has been increasingly raised. However, for this you need to fly to the planet.
The distance all the time varies from 400 million km to 55 million km. This is due to the fact that the planets are not moving in one orbit. The shortest distance between them is 1 time for 16-17 years.
The duration of the flight of the spacecraft is 5-10 months. The specific time period depends on factors such as:
Normal pressure on Earth is 160 times higher than on Mars. Living creatures on the planet can not be without special equipment (spacesuit). Too low pressure can instantly convert the oxygen in the blood into gas bubbles, which will be fatal.
Despite the very thin air (100 times more), clouds and wind form here.
New interesting facts about Mars are also associated with gravity - it is 2.5 times lower than on Earth. The weight of a person here is significantly reduced, allowing you to jump to a height of 3 times higher.
The average temperature for the year is about -27 degrees Celsius.
Sudden temperature fluctuations provoke the emergence of tornadoes from dust and strong hurricanes with a speed of up to 30 m / s. Dust storms of large force (up to 100 km / h) can last for several weeks and cover a huge territory. As they get closer to the Sun, they increase. Most often, tornadoes occur in the south of Mars in the summer. Sand storm particles tend to penetrate into the surrounding objects. NASA workers noticed their presence at the Curiosity Mariner.
There is no ozone ball on the planet. Therefore, a large amount of radiation is released.
On Mars, 1 year is 686 days on Earth. It consists of 4 seasons.
In the north, summer lasts a long time, there is a relatively low air temperature. In the south, this time of year does not last long, but it is notable for its particular heat. This is due to the fact that the orbit has an elongated shape. The distance to the sun ranges from 206,600 to 2,49200 thousand km. In middle latitudes, the temperature varies from 0 to -50 degrees Celsius, and at the equator it can reach +20 degrees.
In winter, polar caps are formed in height from 1 m to 3.7 km. Carbon dioxide takes the form of dry ice. In the region of the poles, the temperature regime can drop to -150 degrees. During this period, researchers noticed unusual patterns.
In the spring there is a split and evaporation of dry ice. The surface becomes red again.
It is considered the largest canyon in the entire solar system. Its dimensions are:
The valley is located along the equator. Scientists attribute the occurrence of the split with the cooling of Mars. At its depth are geological processes.
Most of the launched flying machines on this planet failed or disappeared without a trace. "Bermuda Triangle", so called her in the UAA. The planet has a high level of radiation. Here, too, a bright, silent flash of light arises that carries with it a great threat.
Satellites of mars
The planet has 2 satellites: Phobos and Deimos.
Phobos is much larger and moves in a westerly direction. The distance from it to Mars is constantly reduced. Researchers suggest that in 50 million years the satellite will collide with Mars.
Deimos rises in the west, and sits in the east.
Further research scientists will discover more and more new and interesting facts about Mars.
Many are wondering if the sound of a strong explosion on the moon can be heard on Earth. That is, if something on our satellite crashes hard, we will hear it here.
If you answer this question briefly and quickly, the answer will be, no. And now let's see why this is impossible.
How is the spread?
The sound spreads with the help of sound waves, and for this to happen, at least some kind of medium is needed. It does not matter if it is gaseous, liquid or solid, the propagation velocity only depends on the medium. I think you understand this.
What prevents us
As is known, the Moon is a satellite of the Earth, and they are located in outer space. So this space is almost empty, there are some atoms, but their concentration is very small. So the sound waves will not be transmitted, and we will not hear anything.
So, to the question whether the sound of a strong explosion on the moon can be heard on Earth, we answer precisely what is impossible and now you know exactly why.
And most importantly, if someone asks you, you can not only answer it, but also explain why it is so and not otherwise.
It is interesting
If we touch on this topic further, then many of you have watched fantastic films where space ships with a piercing howl are heard or an explosion is heard, then it is simply impossible - these are all the fabrications of directors. But this is a film, in a different way no one will watch it, if you do, as in life, it will be very boring.
But we will go even further, you heard how the cosmos or planets sound, in fact this is not fiction, just scientists have learned to listen to the radio waves that emit all space objects, and I suggest you listen to the sounds of space.
Man, adapted to live on our planet and our hearing aid is adapted to our home. But perhaps, somewhere, in other worlds, there is another intelligent life and for them the cosmos is not silence (as for us), but a huge and interesting world filled with unique sounds, and the main thing carrying information.
The surface of the main satellite of the Earth - one of the most mysterious places, exciting many minds of mankind. Unfortunately, the reasons why they do not fly to the moon, deprived people of the opportunity to get to know her even closer. Many scientists are upset by this fact, because once they assumed that the satellite would be colonized, and special expeditions were sent there, but now all this has been put on hold and may never happen. This is connected with several important points concerning the flights to the moon, which every person who is interested in the exploration of space, human development and the futuristic works of cinema and literature should know.
The first reason - the cost!
Money is the most important component of space flights. If a company engaged in the exploration of a planet does not have enough money, it will not be possible to count on significant success. It is the financial issue that prevents almost all states on Earth from studying its natural satellite. Gradually, the United States and China are restoring and developing their lunar programs, but even they cannot allocate enough funds for this.
A single flight to the moon may require several tens of billions of dollars. This amount in the study of space is not so big, but for the average person it seems to be enormous. Most of it is spent on ensuring the safety of astronauts, the creation and maintenance of a spacecraft, as well as the research itself.
Previously, the US government allocated about 4% of the budget to study the moon, but now financial support has decreased by 10 times, and scientists receive only $ 19 billion a year. Such money is sufficient only for the simplest studies of the circumlunar space. Other countries are also not able to spend on similar work larger amounts, which deprives a chance to obtain new data on the main satellite of the Earth.
The second reason is Politics.
The second reason why they do not fly to the moon is closely related to the first. After all, they approve the budget of the country from which the money is allocated for research, namely the heads of state and ministers. Therefore, their opinion has a direct impact on the direction of the entire country, not only in domestic or foreign policy, but also within scientific research. This is one of the many reasons why some US residents disapprove of the last of their presidents. They refused to fully deploy the moon program again.
With the arrival of President - Trump, the situation has changed somewhat, since he ordered to increase the amount of funds transferred to scientists to study the moon, and resume flights without disembarking by 2023. However, the words remain words, and the allocated money for a full-fledged expedition is simply not enough. Even if he nevertheless decides to take up this issue much more seriously, this will not guarantee the completion of all the research. The fact is that even one flight, including preparation for it, will take several years. During this time, the president may change, as does the distribution of the budget along with the course of research.
The third reason is loss of interest.
A few flights of astronauts from the United States turned out to be enough to stop the interest in the satellite. This was another reason why representatives of any country do not fly to the moon. This is not to say that American astronauts were able to study the satellite in sufficient detail. They only managed to get a basic idea of the surface, as well as take a large amount of soil for research. From the data obtained, scientists were able to come to the conclusion that the most likely obvious discoveries could not be made, and the likelihood of finding something unbelievable from a deeper study of the moon is quite small. Therefore, US scientists have shifted attention to Mars.
Quite a lot of interest was the opportunity to earn money to recoup all the moon programs. But she did not pay off. For this purpose it was supposed to be engaged in the sale of the substance helium-3, which was not sufficiently in demand. The development of tourism was also considered, but even a simple flight without landing would cost such a traveler $ 100 million. It is because of such a large amount that no one has yet taken advantage of this opportunity. It would be much more expensive to visit the moon itself, which is why the space companies will not be able to make money on this.
Also an important reason why no expeditions fly to the moon is a treaty affecting the norms of international law. It implies that no country can expand its state borders at the expense of the satellite surface or use it for personal purposes, which causes an even greater decline in interest.
Reason Four - Other Difficulties
The landing on the moon, like the flight itself, causes a lot of difficulties and dangers. The slightest mistake can cost astronauts life, because of which it is necessary to pay special attention to their safety. This is due to the satellite surface features, since it is covered with a mass of craters, caves, cracks and ruins. Also of danger is moon dust, which easily sticks to equipment and space suits, making it difficult for scientists to interact and disrupting the integrity of the protection from the external environment.
Another important point, creating a reason why they do not fly to the moon, concerns the sunlight. Rays can heat the satellite surface to unbelievable temperatures. Even specially protected astronaut costumes will not be able to withstand them, since the surface is literally hot. Moreover, such a phenomenon can last for half a month, and after it immediately comes the strongest cold, which is no less dangerous to humans.
The risks associated with the breakdown of aircraft or equipment and the negative impact of the environment on humans are also not excluded. They are not so big, but still have a place and make you think. Therefore, the role of astronauts is chosen only by bold and absolutely healthy people.
Conclusion Will flights be resumed?
All the reasons why they don’t fly to the moon are pretty commonplace, but remain very important even in the 21st century. Gradually, countries are beginning to re-think of the main satellite of the Earth, which gives little hope for the resumption of research. Also, there are more and more businessmen willing to invest in the study of the Moon, which can radically change the situation.
Moon from the ISS