Not to mention that humans want to land on Venus, even those metal probes have not "survived" on Venus for more than 2 hours.
Earth is the only known planet in the solar system that contains life, and we humans were born on this blue planet millions of years ago.
With the continuous evolution of human beings and the development of science and technology, human beings are no longer limited to exploring the mysteries of the earth, but also focus on the universe beyond the earth.
When Armstrong's feet stepped on the moon, the whole world was sensationalized. Of course, a moon does not satisfy human curiosity about exploring the universe, and Venus, which is not far from the earth, has naturally become the target of human exploration.
According to the flight records of previous probes, the time from Earth to Venus is about 100 days, but after several explorations, human beings gradually lost interest in Venus, and even discouraged the desire to land on Venus.
In the past, Venus and Earth are a pair of "sister stars"
Venus is the second rocky planet in the solar system and the closest planet to Earth. Structurally, Venus and Earth have a lot of similarities.
Venus has a radius of about 6073 kilometers, only 300 kilometers smaller than the Earth's radius, and is 0.88 times larger than the Earth, and they all have a central nucleus, a molten mantle and a crust. Coupled with the close proximity between Venus and Earth, many scientists refer to Venus as Earth's "sister star."
Of course, this is only on the surface, if you look deep into the interior of Venus, you will find that Venus and Earth are very different.
With the in-depth understanding of Venus, it was discovered that Venus is a veritable "hell star"
Due to the previous level of science and technology is not developed enough, human understanding of Venus is not comprehensive enough, with the improvement of the level of science and technology, human beings have successively launched dozens of probes to Venus, so far people have found that Venus and earth this pair of "sisters", some of the appearance of the mysterious.
First of all, in terms of rotation, the rotation of the Earth is from west to east, and the rotation of Venus is from east to west. If you look at the sunrise on Venus, the sun rises in the west and sets in the east.
Of course, this does not represent everything, if humans land on Venus, it is nothing more than to look at the sun rising in a different direction.
The most important thing is the environment of Venus.
Venus's surface temperature is very high, there is no liquid water, coupled with extremely high atmospheric pressure and severe lack of oxygen and other cruel natural conditions, Venus is actually a "hell star", these cruel natural conditions also dispel the idea of human beings want to land on Venus.
Why did humans abandon the landing on Venus
1. Hurricanes and lightning on Venus
The "clouds" in Venus are not as mild as Earth's, and The upper atmosphere of Venus is a layer of "thick" and toxic sulfur dioxide.
When a human vehicle wants to go to Venus, the first thing the vehicle will suffer from a hurricane of at least 350 kilometers per hour, that is, about 100 meters per second. Under the interference of such a strong hurricane, it is very difficult for human aircraft to maintain stability without crashing.
Even if the aircraft resists the hurricane, pray not to be struck by lightning. Lightning on Venus is not only frequent, but also long-lasting.
The "Venus 12" probe launched by the former Soviet Union in 1978 detected frequent lightning over Venus as it descended to Venus.
During the landing on the surface of Venus, the "Venus 12" probe recorded 1,000 lightning bolts in the period from 11 kilometers to 5 kilometers, and one lightning bolt lasted for 15 minutes.
Even if the aircraft has dodged hurricanes and lightning, don't be happy too soon, there is still a more powerful environment waiting for you below.
2. The surface temperature of Venus is high
Venus has a strong greenhouse effect, which makes the surface temperature of Venus very high. This is because Venus' atmosphere is 100 times denser than Earth's, and in terms of atmospheric composition, 97% of Venus's atmosphere is carbon dioxide, while there are 20-30 kilometers of thick clouds.
Carbon dioxide and thick clouds only allow sunlight to pass through, but block the surface temperature of Venus from spreading out of the atmosphere, and the sunlight to Venus becomes "only allowed to enter and not to leave", so that the surface temperature of Venus is as high as 465 to 485 ° C, which is enough to melt the lead block.
At the current level of human technology, spacesuits can withstand temperatures between 150 ° C and minus 180 ° C. In the heat of Venus, even wearing a spacesuit has to be roasted.
3. High-intensity air pressure and sulfuric acid rain on Venus
The atmospheric pressure of Venus is 90 standard atmospheres, which is equivalent to the pressure of 1000 meters deep in the Earth's oceans. You know, the diving depth of ordinary submarines is also between 300-400 meters, and if it is deeper, it will be squeezed by the pressure of the sea.
Even if the human-built aircraft can withstand the atmospheric pressure on the surface of Venus, the flesh and blood of human beings cannot withstand such a large pressure. Once the astronaut steps out of the aircraft's hatch, the strong air pressure will crush the astronaut into a ball.
Even if the astronauts stay in the aircraft and can't come out, the aircraft can't withstand the corrosion of sulfuric acid rain.
To be precise, Venus is not raining on sulfuric acid, but highly corrosive sulfuric acid, which does not contain a trace of moisture. Due to the influence of the high temperature on the surface of Venus, these sulfuric acids may be atomized in mid-air, and a layer of sulfuric acid mist will be covered on all sides.
The aircraft is wrapped in sulfuric acid mist, and it will not last long before it will be corroded.
The environment of Venus is so harsh that scientists are full of despair about the exploration of Venus, and instead set their sights on Mars
Mars is the second closest planet to Earth, and it is also one of the most Earth-like objects in the solar system.
The intersection of the equatorial plane of Mars and the plane of the orbit is very close to that of The Earth, which makes it also have an Earth-like rotation of seasons, and the rotation period of Mars is 24 hours and 37 minutes, which makes a day on Mars almost as long as on Earth.
The main thing is that exploring Mars is not as strenuous as exploring Venus. There is no thick atmosphere on Mars, and orbiting satellites can easily see the general appearance of Mars. Venus's atmosphere is so thick that the probe was unable to see beyond the atmosphere to see the surface of Venus.
Of course, the environment on Mars is not as harsh as Venus, at least the probe can work on Mars for a little longer.
Take the Curiosity Mars rover, which successfully landed on the surface of Mars in 2012 and is still working on Mars today.
In many human explorations of Mars, there have been many major discoveries.
For example, scientists have found riverbed landforms, clay minerals, and hydrated minerals on Mars, and these evidences that there were rivers and lakes on Mars. Even a long time ago, Mars was pregnant with life.
Say at the end
Don't look at Venus is the closest planet to Earth, but if humans want to land on Venus, it is still relatively difficult to see the current level of technology.
In the last century, the former Soviet Union and the United States launched dozens of probes to Venus, and nine successfully landed. The probe with the longest working time lasted less than 2 hours and was scrapped in the shortest few minutes.
In such a harsh environment, no metal probe can work on Venus for a long time, let alone land on Venus.