Great Country Academician

Because it uses an electric propulsion system as its power engine, the time it takes for Xinghai to climb the gravity well is much longer than that of a traditional chemical fuel launch vehicle.

For aerospace, this is both an advantage and a disadvantage.

The advantage is that the acceleration is small, and it can climb the gravity well more stably and gently. The personnel inside the spacecraft will not bear excessive acceleration and pressure, and even an ordinary person can adapt.

The disadvantage is that it takes a long time.

If it takes about 7-10 minutes for a conventional chemical fuel launch vehicle to launch a spacecraft to a low-Earth orbit of 400 kilometers, then the electric propulsion system takes about two hours.

The long time is mainly due to the early climb of the gravity well in the atmosphere and the increase in flight speed. After reaching the critical point and switching flight mode, its speed is not weaker than that of chemical rockets.

For the viewers in the live broadcast room, although two hours is a bit long, it allows them to better understand how the space shuttle climbs into the sky bit by bit.

The scenery of clouds and ground at different heights also made these netizens who stayed in the live broadcast room late at night keep shouting and screaming.

Fortunately, tomorrow is the Dragon Boat Festival, and most people have already had a holiday. Everyone has enough time to stay up late. Otherwise, how to get up tomorrow, or should I say this morning, will be a difficult problem.

On the other side, on the Xinghai space shuttle.

Looking at the dark night outside the driver's window, Zhai Zhigang, who was sitting in the main driver's seat, breathed a sigh of relief.

As an astronaut, he has entered space more than ten times, landing in near-Earth orbit and the space station.

But it has to be said that Xinghai is the most relaxing launch process among all the spacecraft he has ever flown on.

Even if the flight speed increases when he switches flight attitude and climbs out of the gravity well at the critical point, the acceleration and G value are still quite small, at least for him.

With an acceleration of less than 3 G, for someone like him who has adapted to the launch process of traditional chemical fuel rockets, he will not feel any pressure at all.

Although this was not the first time he had taken the Xinghai to the sky, he still felt magical about this gentle way of taking off.

A few months ago, he never thought that the development and breakthroughs of aerospace technology could reach such a height.

The technology that can easily launch astronauts or even ordinary people into the sky without any pressure was regarded as a science fiction story in the past in the space industry.

But now, this story has become a reality, and he can't help but sigh with emotion about the development of the times.

After shaking his head and clearing his mind, Zhai Zhigang checked the air circulation system and life support system inside the space shuttle. After making sure that everything was normal, he reached out and took off the aerospace helmet on his head, and unlocked the safety buckle, levitating from the seat.

Floating in the space shuttle, he looked at his two teammates and gave the order: "Liu Yang, you are responsible for maintaining stable communication between the Xinghai and the ground command center."

"Chen Dong, you are responsible for checking the operation of various components and equipment of the Xinghai space shuttle. I will check the status of the lunar landing equipment and lunar landing instruments."

"receive!"

"Yes, Captain!"

Liu Yang and Chen Dong both nodded and flew to their respective posts, while Zhai Zhigang floated towards the middle of the space shuttle.

After several hours of flight, they have now entered hundreds of kilometers of low-Earth orbit.

Here, Xinghai will make a short stay of two hours, allowing the three astronauts to check the status of various space shuttle equipment and lunar landing equipment and instruments.

If it is confirmed that there is no problem, the next step will be to re-ignite the space engine and change orbit to the moon.

the other side,

After several hours of launch flight, netizens who were still squatting in the live broadcast room in the early morning finally got the picture they wanted to see.

The Xinghai, floating hundreds of kilometers away in space and preparing to land on the moon, has enough time to show the earth and the sea of ​​stars to the outside world for appreciation.

(Real shots of our Tiangong Space Station. Although there are more beautiful ones than this one, I think this one is more representative)

Facing these images transmitted back in real time, the audience in the live broadcast room had a heated discussion!

[So beautiful, so romantic! 】

【Wuhu, really heaven! I really hope that one day I can stand at such a height and see such a beautiful earth and starry sky! 】

[When I think about it, it feels strange. The blue planet below is my home planet. 】

[This picture quality is completely suitable for making movies! 】

[At this time, a space located in the observable universe - Hercules - Great Wall of Corona Borealis - Lanikea Supercluster - Virgo Cluster - Local Group of Galaxies - Milky Way - Orion Cantilever - Gould's Belt - Local Bubble - Local Interstellar The traveler of the cloud - the Oort cloud - the third planet in the solar system, passed by and posted a message! 】

[Broadcast this upstairs, and then the earth will boom! 】

[Mother Earth: "I'm so lucky to have you guys.\