"This is the ...... of the Xiangrui"

“…… On our side, some accidents happened. ”

After hesitating for a moment, Nie Yun still reported the situation to the ground.

"Professor Lu is here with us."

There was a few seconds of silence on the ground command.

After a while, it was replaced by Hou Guang's voice.

"Okay, I got it."

Uh, got it?

That's it?

Just when Nie Yun hesitated to ask what to do, Hou Guang continued.

"Keep sailing, the flight plan remains the same...... But please make sure that Professor Lu is safe. ”

At this time, changing the flight plan at will increase the risk of the mission.

He also knew this in his heart, and Nie Yun could only nod his head.

"Understood."

After ending the communication, Nie Yun took a deep breath, looked back at Lu Zhou, who was packing the coffee cup into the storage box, and reminded him.

"The altitude is approaching a critical value, and it's about to switch flight modes."

According to the pressure and temperature curves, when the altitude reaches more than 20 kilometers, the density of the outside atmosphere will quickly decay to a fairly low value. At this time, it is no longer possible to rely on the wings to provide upward power, and it is necessary to rely on engine thrust to fight gravity, and the shuttle will fly upwards at a greater angle of inclination.

And at this point, the crew will not be able to move around the spacecraft at will.

"I know."

Without Nie Yunduo's reminder at all, Lu Zhou had already walked to the side of the crew seat, opened the metal door attached to the bulkhead, and laboriously dragged out the bulky cabin spacesuit from inside.

Seeing Lu Zhou's somewhat struggling movements, Nie Yun hesitated and asked, "Spacesuit...... Will you wear it? ”

Skillfully putting on the various pipelines on the spacesuit in the cabin and the environmental control and health protection system in the cabin, Lu Zhou, who had already finished dressing, looked back at Nie Yun and raised his eyebrows.

"Of course, I've practiced countless times at home."

Nie Yun: "......"

Nie Han: "......"

MPP……

It turned out to be premeditated!

Although the acceleration of this space vehicle, which is similar to that of an aerospace aircraft, is not very high, and strictly speaking, the protection of the spacesuit in the cabin is only required during the return phase, but considering that it is the first flight after all, even if it is fully prepared, there are still many uncertainties.

For the sake of safety, everything still has to be strictly followed by procedures, and this bulky cabin spacesuit must not be taken off until at least after it is put into orbit.

Standing next to the occupant's seat, Lu Zhou looked at himself in the mirror.

Compared with the extravehicular spacesuit with its own power system and portable life support system, the in-cabin spacesuit is barely lightweight, but it is not much better. As for the cost, it is naturally cheaper than the extravehicular spacesuit, about 10 million.

Speaking of which, it seems to be the most expensive garment he's ever worn.

Thinking of this, Lu Zhou suddenly had an idea.

Want to take a selfie?

But after thinking about it, he finally gave up on this plan.

After all, wearing this thing, it's really hard to operate a mobile phone, so forget it.

After reaching the airspace at an altitude of 20 kilometers, the engine output behind the Xiangrui gradually increased, and at the same time, the nose of the aircraft began to rise sharply, and began to speed towards outer space along a trajectory almost tangential to the earth......

……

It's a long journey from the surface to space.

Strictly speaking, an altitude from 100 km (the upper limit of the airspace of various countries) to 2,000 km is counted as low Earth orbit. The test flight altitude is based on the 419 kilometers of the International Space Station, with a total flight time of about two hours, and it is expected to stay in low-earth orbit for 24 hours before returning to the surface.

This altitude is considered decent for manned spaceflight, and generally manned space activities in low-earth orbit will be completed in an area below 400 kilometers, and the first flight of Luzhou does not intend to let Xiangrui fly too far.

The five engines behind him were at full power, like a retrograde meteor, dragging the blue arc light of the Xiangrui and continuing to climb in height. The three people sitting in the cabin could clearly feel the rise in gravity, but the rise was so weak that it was almost imperceptible after getting used to it.

Looking at the distant planet outside the window, Lu Zhou's pupils slightly dilated a shocking look. The blue sea and the thick clouds converged, and the lights of thousands of homes were like stars in a cold night, and the morning light on the edge of the horizon was connected.

It took a while to digest the shock in his heart before he sighed softly.

“…… Only by standing here can we most intuitively feel the fact that the earth is round. ”

Nie Yun: "Isn't the globe good?" ”

Lu Zhou smiled and said: "After all, it is a conclusion made by others, and there is a difference between it and the shock you saw with your own eyes." ”

Also overlooking this blue planet, the shock brewing in Nie Han's heart was completely different from the emotion in the hearts of the two men. What she sees is more based on beauty, or sensibility, than on the rational side.

It took a long time for her to look at the planet outside the porthole before she let out a sigh of emotion.

“…… It's beautiful. ”

Nie Yun, who was sitting next to her, nodded.

"yes...... So beautiful. ”

By the time the 100-kilometer limit was breached, the spacecraft had moved from the mesosphere to the warm layer. About 60 kilometers further on, you can reach the lowest altitude around the Earth, an orbit of 160 kilometers.

At this point, although it has not yet left the fugitive layer, the resistance of the air is already negligible.

The arc light that lit up behind the Xiangrui began to weaken, from a shiny dagger to a flickering candle, and finally as the sound of "successfully entering orbit" reached his ears, the controllable fusion engine on the Xiangrui turned off at the same time. With the power unit turned off, the cabin circuit was also switched to a lithium-sulfur battery power supply system.

Although he couldn't hear it with his ears, Lu Zhou's heart could feel it at this moment, the cheers that resounded in the ground command center, the national anthem that was played at the launch center, and the pride and pride that echoed in the hearts of all the personnel at the scene.

"It's finally in orbit...... Damn, this thing is pretty easy to wear, and it's really not an ordinary trouble when you take it off. ”

Especially in weightlessness......

Finally unbuckled from the crew seat and connected to the cabin environmental control health protection system, Lu Zhou, who took off the spacesuit in the cabin, slowly floated up from the seat and floated to the side of the space shuttle porthole in a not very skillful but okay way of moving.

Looking at the blue earth, Lu Zhou held his breath for two seconds at this beautiful picture, then took out his mobile phone from his pocket and took a photo.

Almost as soon as he pressed the shutter, a pale blue window appeared faintly in his field of vision.

[Secondary Mission: Overlooking the Earth.] 】

[Description: Exploring science requires not only excellent vision, but also the courage to dedicate oneself to science!] 】

[Requirements: Located at an altitude of 100-2000 km, manually operate the camera equipment to take pictures of the earth.] (Host Only)】

[Reward: 50,000 free experience, one chance to draw a lottery.] (Settlement after the completion of the first stage)】

That's a really ...... task

It looks like he's about to dedicate himself to science.

Looking at the line of mission instructions, Lu Zhou shook his head and stuffed his phone back into his pocket.

However, although the mission description is not very mid-hall, the mission rewards are still quite fragrant.

It's just that......

At this point, the people in the ground command are probably out of order.

How do you explain it when you get back?

You can't say that you just want to go up and see the scenery, so you just hitchhike up? Although the scenery above is really beautiful.

emmmm……

After thinking for a moment, Lu Zhou finally shook his head and threw the thought in the back of his head.

Forget it, whatever.

He wasn't obligated to explain it to anyone in the first place.

Want a reason?

It's good to have a headache on your own.