Has man ever been to Mars?

Man has never set foot on Mars.

It has been nearly 50 years since man landed on the moon. Although he has been planning to land on Mars since then, he has not succeeded so far. It is estimated that the hope of landing on Mars in the next decade is still very slim.

The reason why humans didn't land on Mars:

At the beginning of the plan, many people thought that technology limited human beings. The environment of Mars is far from that of the earth. If you want to land on Mars, you need to face a series of challenges, including lack of water and oxygen. If you are unlucky, you may encounter sandstorm weather. Landing on Mars is undoubtedly difficult and dangerous.

But with the passage of time, in 2 1 century, the scientific and technological strength of human beings has been greatly improved. We can completely build a closed space capsule to ensure the safety of astronauts. In case of water shortage, we can transport water from the earth, and in case of lack of oxygen, we may also bring our own oxygen bottles. We can also analyze and forecast the unpredictable sandstorm weather. It can be said that there is almost no difficulty in the technical level.

Who was the first person to die in space in China?

No one died in space in China.

The first man in China to go into space was Yang Liwei, born on June 2 1, 1965. On June 2 15, 2003, he entered space for the first time at 9: 00 Beijing time and returned successfully after flying in space for 2 1 hour. There was no first astronaut killed in China. China's astronaut list includes Yang Liwei, Fei, Ye Haisheng, Zhai Zhigang, Liu Boming, Jing Haipeng, Liu Wang, Zhang, Deng Qingming and Li Qinglong.

Wu Jie, Chen Quan, Zhao Chuandong, Pan Zhanchun, Liu Yang, Wang Yaping, Tang Hongbo, Ye Guangfu and Cai were all killed. The Long March II F- 14 carrier rocket carrying Shenzhou XIV manned spacecraft was ignited and launched at Jiuquan Satellite Launch Center. About 577 seconds later, the Shenzhou 14 manned spacecraft was successfully separated from the rocket and entered the scheduled orbit. The pilot was in good condition and the launch was a complete success.

space

Space, also known as the universe, is the space outside the earth's atmosphere. The International Aviation Federation in Geneva, Switzerland defines the boundary between the atmosphere and space: the height above the earth's sea level 100 km is the boundary, which is called Carmen Line. Humans have carried out various exploration activities in space, such as building a space station for astronauts to cruise and work for a long time. The space outside the earth's atmosphere, the whole space outside the atmosphere.

The real photos of the earth are too scary.

The real photos of the earth are too scary.

The photos of the real earth are too scary. Many people are very satisfied with the earth we live in, but with all kinds of pollution, our earth has become ugly. Next, I will take you to know the horrible photos of the real earth.

The photos of the real earth are too scary 1

Overseas media said that many people's impression of the earth is probably beautiful water blue, but in fact that photo is "PS". Recently, the Japanese meteorological satellite Sunflower 8 took a detailed image of the earth, which is the first photo showing the true color of the earth.

On February 24th, 65438 in Taiwan Province Province, the British Daily Mail reported that the meteorological satellite Sunflower 8 was launched on June 24th, 65438+1October 7th. Recently, an image was taken at a distance of 35790 kilometers from the Earth, showing the details of clouds, oceans and deserts. With super high resolution, this is the first original picture of the earth without any color modification.

Japanese satellites photographed the real face of the earth.

In the past, people's impressions of the water-blue earth came from this photo.

In the public's impression, the water-blue earth is actually a color-corrected photo taken by NASA, which is very different from the gray earth taken by Sunflower 8. However, this so-called "true color" photo does not refer to the image seen by the naked eye, but the real face of the earth in space.

"@ NASA Chinese" also published a photo of the earth without makeup, which surprised netizens. It is uneven, with one concave here and one convex there. Generally speaking, some netizens said it was like a sweet potato, some netizens said it was like a spare tire, and some netizens said it was like a pomegranate.

For this photo, astronomical experts said that the earth is really not an authentic sphere, and its appearance is a bit strange. The reason why the earth is so long is that it not only revolves around the sun, but also rotates. There is both land and water on the surface of the earth. In order to maintain the internal gravity balance, all parties grow into this strange shape under the "struggle".

In fact,

Now, scientific means are developed, which opens up many ways for earth survey. Through actual measurement and analysis, accurate data are finally obtained: the average equatorial radius of the earth is 6378.38 km, and the polar radius is 6356.89 km. It is also found that the Arctic is about 18.9 meters high and the Antarctic is 24 ~ 30 meters low. It seems that the earth is shaped like a pear: its equatorial part protrudes, which is its "pear body"; The North Pole is a bit sharp, like "pear pedicle"; The South Pole is a little concave, like a "pear navel", and is called "pear-shaped earth". To be exact, the earth is a triaxial ellipsoid.

Real earth photos are too scary 2

We are always talking about finding extraterrestrial civilization and emigrating to other planets. We are always eager to emigrate to the stars. However, it is pessimistic that up to now, although more than 4000 exoplanets have been discovered, only the earth is still the only known planet with life suitable for human survival. In our stereotype, since man took the first panoramic photo of the earth by satellite 43 years ago, the earth has always been a vibrant blue planet with completely different oceans and continents.

43 years ago, when the first panoramic photo of Zhang Weixing was released in the world, people were shocked by the beauty of the earth, and we were proud of it. More than 70% of the oceans are covered by dense forests on land, which makes our earth like a fairyland, blue and green, colorful and well-defined. Since then, this beautiful image has been engraved in our minds, lingering. Forty-three years have passed, and our earth has not changed at all. Is it really still that beautiful?

In 43 years, the earth has changed. You may not believe it. The earth has changed in less than half a century. It has lost its beauty, even beyond recognition. Yes, the earth has become ugly now, and its appearance has been destroyed by human beings. You may not believe it, but it's true.

Due to the different social division of labor, for most people, there is actually no chance to go directly into space to see the true face of the earth, and even the original photos taken from space at first hand have no chance to see it. All we can see is the processed information and release.

Yes, the earth is beautiful, but that was in 1978, when humans photographed the earth. It's really beautiful, with a clean atmosphere and a vast blue ocean. At that time, the damage caused by human beings to the earth was really small, and there was almost no impact. At that time, the earth had enough ability to digest and deal with environmental problems caused by human beings, but now it has changed, and our destructive power has exceeded the capacity of nature.

In recent years, with the development of human society, we have indeed paid a huge price. Looking at the earth from space, the ocean is not so blue, the land is not so green, the atmosphere is not so normal, and the earth is a little grayish brown.

This is just the interior of the earth. Do you know that outer space is not pure land? In recent years, with the increasing dependence of mankind on artificial satellites, a large number of spacecraft have flown into space and successfully put into normal use, and failed or failed to become space junk. So it is conceivable that our earth has a layer of high-speed garbage. The space environment is inherently dangerous and complicated, especially after there is so much man-made space garbage, the earth is even more dangerous. In particular, we are almost helpless about space junk, and there is no way to recycle it, so "space junk" will only increase.

There are more than 200 countries and regimes in this world, and everyone has complicated relations and interests, but we should remember that the earth is our home. Before we have the ability to create a new star, we should protect it well, because it is the foundation of all of us. We should keep the ocean blue, the sky clean and the earth evergreen. We should not give up environmental protection completely for the sake of economic development, because we must suffer in the end.

Our earth belongs to us, but it belongs to those descendants after all, so do you think we should protect it in time in the face of the deteriorating earth environment?

Real earth photos are too scary 3

1. Today there are 7.38 billion people in the world. With the continuous growth, it is estimated that the global population will exceed 1000 billion in 2056! This picture shows the current situation of overpopulation in Mexico City. It is the result of more than 20 million people living in a city!

2. Because of the demand for animal products, there are many illegal hunting incidents in Africa every day. Elephants and rhinos are slaughtered in various cruel ways to meet the illegal animal products market of ivory and rhinoceros horn!

Every two seconds, a forest the size of a football field disappears. The main reason is the forest fire!

There are many tracks left by airplanes in the sky of London.

A giant truck carrying oil sands will send the oil sands to be processed, which is regarded as one of the important energy sources in the future world.

6. The oil sands in Alberta, Canada left a devastated surface.

7. A shepherd in Inner Mongolia can't stand the stench of the polluted Yellow River.

8. A landfill in Bangladesh.

9. Extreme climate causes frequent wildfires in Colorado, USA, and forest fires cause serious casualties and economic losses to the world every year.

10, the night view of Los Angeles looks beautiful, but the price behind beauty is endless energy demand.

1 1. In Oregon, the Millennium forest was razed to the ground just to build a new dam.

12. In order to grow crops that are not suitable for the local climate, the Spanish almeria has built endless greenhouse farmland, in order to let local residents eat the food they want.

13, Russia once discovered the largest diamond mining area in the world, but after mining, it also left Russia with the largest abandoned mine pit in the world.

14, photographer ChrisJordan found albatross bodies everywhere in Midway Island. The belly of the dead albatross is stuffed with a lot of plastic garbage. Ironically, Midway Island is the farthest island from the land in the world, which proves that the garbage made by human beings every day is ubiquitous and harmful!

15, facing the same overpopulation problem as Mexico City, New Delhi, India has a population of more than 22 million. Looking at pictures in the air will definitely make people with intensive phobia bow their heads!

16. The Maldives, a paradise on earth, will be submerged by seawater in this century under the threat of rising sea level.

17. Tens of thousands of tons of e-waste are transported to third world countries every day. Toxic substances in electronic parts not only squeeze the local people, but also seriously endanger the health of the local people!

18, Canada's virgin forests are also being cut down and burned day by day!

19, Nevada, USA, used for stacking waste tires.

20. The disappearance of Arctic ice makes polar bears lose the platform for hunting seals. Polar bears who can't find food can only eat their cubs to satisfy their hunger and finally starve themselves to death.

2 1. The oil fields in California, USA were ruthlessly exploited by human beings until they were completely exhausted!

22. Glaciers in the Arctic and Antarctic are melting at an alarming rate every day. The disappearance of the ice layer reduces the ability to reflect sunlight, and the seawater absorbs sunlight and heats up to accelerate the melting of the ice edge!

23. It is an undeniable fact that burning fossil fuels aggravates global warming and leads to climate change.

There is an old Indian proverb that says very well, "Only after cutting down the last tree, catching the last fish and polluting the last river will we understand that money can't be used to eat"!

Bruto's terrible body

In this vast universe, is there any other life besides human beings? It has always been the direction of our exploration. When human beings were studying, they discovered a terrible phenomenon. There are nearly 2000 celestial bodies around Pluto. It's really scary to think about it. Why is this? Next, more than 2,300 bodies of Pluto were decrypted.

First, the reason for Pluto's body.

There is a strong magnetic field near Pluto, which many planets do not exist. There are also many satellites near Pluto, and Sedna is one of them. Besides Sedna, there are many growing planets, such as Mars, one of the five dwarf planets in the solar system, and even a large number of satellites. In the process of operation, it also led to car accidents. Satellites collided, and then collided with Pluto, producing rubble similar to a corpse.

Science shows that these rubble will follow the magnetic field and rotate around Pluto. When it collides, it may combine, which is also a magical existence. After the combination, it will become a huge satellite with the passage of time, and then it will collide again. This is a round-trip process.

In Pluto's magnetic field orbit, there are already many rotating things, and their movements are also easy to collide. Maybe one day, there will be multiple pieces. This kind of rubble still looks shocking. Many people say that in the vast universe, the rotation of planets is not random, they have to rotate by themselves, and they will become fragments if they are not careful.

Second, the study of Pluto has never stopped.

Pluto withdrew from the ranks of the nine planets and officially became an independent individual. It cannot be said that Pluto has lost the value of research. There is no less research around Pluto than other planets. After the discovery of this fragment, human beings paid more attention to this Pluto. They thought it was the body left by the space war, but they didn't know it was rubble until they studied it. In fact, there are many strange objects found on Pluto. Once snails are photographed on Pluto, there are constant questions.

Zongmen's research on Pluto and outer space must not stop. If you want to get more information about outer space, you must go all out to pursue it. Although you didn't get information from aliens this time, many years later, if there are aliens, humans will definitely find their footprints. Only when technology is particularly developed can this mystery be solved.

Three-eyed female corpse found on the moon

It's a lie to find a dead woman with three eyes on the moon.

Although in the eyes of the public, the three-eyed female corpse on the moon is real, because there are a large number of photos to testify, in fact, we can find that these photos are not real, and it is very likely that they were made by computer later.