Chapter 81

Although the wind speed of Rutan D is nothing compared to other giant planets,

But for humans, such wind speeds are enough to create a deadly threat.

And the main danger of spacecraft landing on giant planets is also to the wind,

The wind itself does not have much impact on the spacecraft, as long as the spacecraft is aerodynamically designed, it can also use the violent wind as the driving force for navigation.

The real danger is what the wind is blowing,

As an ice giant, due to temperature and atmospheric pressure, there will be some ice clouds in the stratosphere and troposphere.

The ice in these ice clouds, blessed by strong winds of hundreds of kilometers per hour, will become extremely terrifying razor waves.

Even if the exterior of the spacecraft is wrapped in the most wear-resistant material that humans currently have,

However, under severe friction, it can still cause damage to the spacecraft and endanger the personnel in the spacecraft.

"So you can't do anything about this kind of planet?"

At this time, Xiao Guang was flickering at a strange frequency, and asked Yang Meng this question.

Hearing this question, Yang Meng shook his head gently,

Looking at the blue planet in front of him, he was silent.

The atmosphere in the spaceship fell silent like this,

And in this silence, he faintly heard something:

"Yang Meng, you have to understand that in the process of human aerospace development, there are always pioneers who have to sacrifice ......"

"Mankind's exploration of the unknown never ends!"

At this time, a figure slowly emerged in Yang Meng's memories,

That person was a mentor and a friend to him, and an important person who helped him become a pioneer astronaut.

But after that mission, the man never returned.

"What is the purpose of being an astronaut?"

Yang Meng still remembers the first question he was asked when he saw her as the captain after he completed the assignment,

And such a question has been asked countless times since the selection of astronauts,

So he was very skillful at that time, and responded to this question with a grand narrative, a great goal,

However, his tirade did not last long when the man interrupted him:

"I'm different from you, the purpose of becoming an astronaut is actually very simple,

Just curiosity, just to see what is on other planets? ”

Such an answer is very ordinary, so ordinary that Yang Meng was a little surprised,

As if seeing Yang Meng's surprise, she continued:

"In fact, you will find that when a person enters a long and lonely journey,

An ordinary and firm belief is best adhered to!

No one is born great!

……”

And for such a statement, Yang Meng is more incomprehensible,

For humanity in this interstellar age of the solar system, such a statement is completely out of step with the times.

Therefore, in the face of this, it is often emphasized that astronauts are also ordinary people.

The captain who always pays attention to his spiritual world, his attitude can only be regarded as average,

"Who would have thought that she, who often thinks that astronauts are ordinary people, would take the initiative to apply to carry out the Uranus exploration program!"

Thinking of one of the most dangerous exploration missions in the history of human spaceflight, Yang Meng's heart stirred,

Until now, when he recalled the content of that mission, he still couldn't understand it in his heart.

In that era, artificial intelligence technology, space detector technology, and various sensing and detection technologies were very mature.

There is absolutely no need to send astronauts into an extremely dangerous giant planet,

Even though Uranus's four giant planets have the smallest mass, only 14.5 times that of Earth,

The wind on the planet is also the calmest of the four giant planets, with a maximum wind force of only 240 m/s.

But even so, Uranus is still an extremely dangerous giant planet for humans.

Although humans have previously successfully landed probes on Uranus.

But it is precisely the landing on the "name but not the real bottom" that further reveals the dangers inside the gas planet.

In order to select astronauts, the ground command center told the astronauts involved in the selection in great detail about the danger of Uranus.

Therefore, Yang Meng also has some understanding of the condition of Uranus.

The so-called "nominal but unsubstantial" is essentially a semi-liquid interface on a giant planet that is close to the density of water.

as everyone knows

There are two common ways to liquefy a gas,

One is enough pressure to press its gas into a liquid,

Second, under a certain pressure, when the temperature is reduced to the boiling point of the gas element, it can be naturally condensed into a liquid.

The boiling point of gases common in the universe is generally very low, and it is difficult to condense naturally into liquids through temperature regulation.

Fortunately, Uranus itself is the coldest planet in the solar system, and Uranus has a certain atmospheric pressure, so the conditions for such a density interface are not difficult to reach.

By Earth's standards, an environment at 1 bar can be "nominal but insubstantial"

Although the density of gas in such a location is already about the same as that of water,

But when the probe landed, it was found that it was still in the clouds of Uranus, so it was called the "nominal and unreal" of the gas giants

Theoretically, as long as human spacecraft can land on the surface of the sea when they return to Earth,

You can land on Uranus.

But there are still winds and waves in the earth's oceans,

On the stormy giant planet, you can imagine what kind of "monstrous waves" will exist here

According to the data sent back by the detector,

In the vicinity of Uranus, there are not only terrifying storms that humans cannot understand,

Even if you go below the "sea",

The density of the gas continues to increase, and the wind cannot push the denser substance.

It will still cause extremely fast circulation movements,

In the liquid-gas-like circulation, the detector is like sliding down a very high water slide, and it can't control itself at all, so it can only go with the flow.

It can be said that carbon-based creatures like humans are very dangerous on gaseous planets.

But even so, human exploration of Uranus can only reach the vicinity of the stratosphere, far from reaching the liquid ocean of Uranus.

It was this dangerous situation that made Yang Meng, who was very young at the time, a little incomprehensible,

What is the significance of sending astronauts to Uranus on the ground?

Faced with Yang Meng's question, she asked him rhetorically:

"Why do humans already have unmanned probes that can access the Mariana Trench, the deepest part of the planet?

But do humans have to go to the bottom of the trench in person in the face of dangerously strong water pressure?

When you can understand this question, you can understand why humans would venture to extremely dangerous places! ”

"I should be able to understand by now, but you ......"

Thinking of the name that had been engraved into the monument, Yang Meng sighed, and did not tell Xiaoguang about the history of human exploration of giant planets.

Just replied:

"Our destination is the moon of this planet!"