According to the old cat, in order to withstand the strong earthquake that swept the entire northern hemisphere of Mars, Tang Yue had to dismantle the Kunlun station, break it into pieces, overcome the rigidity with softness, avoid its edge, and wait until the earthquake passed before rebuilding the Kunlun station.

Tang Yue has never tried to disassemble the Kunlun Station, although this big tent is a modular design, the designers must have racked their brains to reduce the weight of the main structure of the Kunlun Station, and greatly reduced the complexity, otherwise the crew may not be able to assemble it by human hands alone during the seventh landing mission.

But engineers on Earth may not have thought about demolition.

Kunlun Station is a permanent base, and once it is built, it will stand until the moment when it is completely abandoned, and no one ever expected that it will be demolished one day.

Tang Yue put on the Mingguang armor and went out, walking around Kunlun Station, the circumference of the main station is more than 50 meters, the vertical outer wall of more than two meters high, printed with huge blue letters "KunLun Station", and then up is the dome that the lid of the pot seems to be buckled upside down, their main material is glass fiber reinforced PEEK engineering plastic, smooth and solid to the touch, according to the maintenance manual, the strength of the outer wall of Kunlun Station is four to six times that of steel, but the quality is one-tenth of the latter.

This outer wall is the main structure of the Kunlun station, they are very thin, only a few millimeters thick, but Tang Yue was able to survive 80% thanks to this paper-thin wall, the outer wall ensures the airtightness of the Kunlun station, isolates most of the strong radiation, blocks all the harsh environment on Mars, and supports the scientific research station together with the aluminum alloy frame inside.

The inside of the outer wall is the styrofoam insulation and airtight layer, and if you want to remove it, then you have to remove all of these.

"The battery, the OGS cabinet, and the water tank, these things are the most terrible." Tang Yue stood far away on the sand, with the bright starry sky above his head, the sky had already darkened, they simulated testing all day today, and time flew by in one failure after another, "How can we ensure that they don't have problems?" ”

The old cat squatted on the chair, "The battery and the OGS cabinet are easier to solve, and when the power is off, it is wrapped up and thrown into the garage to be placed...... The water tank is best removed in advance and put on the outside freeze, so that it will not be afraid of leakage if it freezes into a large piece of ice. ”

"It's not going to freeze the tank, is it?"

"There's a lot of extra space in the tank, and it can't crack." The old cat said, "In the past, Kunlun Station was closed between missions, and the excess water in the water tank was also frozen. ”

"Then most of the tomatoes I raise will not be able to keep them."

"I'm sorry too." The old cat said, "But we can't protect ourselves, we really can't find any way to protect them, the plants are too fragile, once you leave the protection of Kunlun Station, you will definitely die, you can only let them die more valuable." ”

"Chop up the fermentation and use it as fertilizer to provide nutrients for the new seeds, and I think they'll agree."

"I'm old and nowhere to go." The old cat said, "Have you heard of the legend of the Abandoned Mother Mountain?" ”

"What's that?"

"It is said that a long, long time ago, in a deep mountain village in Shinshu, Japan, because it was too poor to support too many people, every elderly person over the age of 70 would be taken to the mountains by their families and discarded." The old cat explained, "The old mothers will be carried up the mountain by their children in the snowy winter, and then stay in the mountains to wait for death silently, so the mountain is called the abandoned mother mountain." ”

"And that kind of thing?" Tang Yue was taken aback, thinking that if this happened in China, which advocates filial piety, it would not be a thousand people's fingers.

"In the case of extreme lack of survival resources, the organized abandonment of the old and weak individuals is a necessary measure taken by the biological community in order to continue." The old cat said, "Have you ever thought that in the legend of the Abandoned Mother Mountain, most of the elderly may have volunteered to go up the mountain, and they want to leave resources for the newborn children - and when the children are old, they will also voluntarily go up the mountain to make room for the birth of the next generation." ”

Tang Yue was silent for a few seconds.

"What a sad story."

He didn't know whether it was extremely cold or warm, extremely rational or extremely emotional.

"This batch of tomatoes dies, and the next batch of tomatoes will be born." The old cat whispered, "Every life is as heavy as a thousand pounds, and only life can hold up life." ”

Tang Yue sat down and looked at the black desert in the distance, the bright and bright Milky Way rose behind the sand dunes, across the entire sky, the ancients said that it was a big river in the sky, but Tang Yue felt that it was more like a tortuous crack in the dark sky, like a bottomless abyss, from which countless stardust fell.

It is rare to see such a starry sky on Earth, which reminded Tang Yue of the night when a bonfire was lit in the Lop Nur Desert, when he and Lao Wang picked up dried poplars and camel thorns, lit them and sat around to keep warm. According to the old cat, the starry sky on Mars is very similar to that on Earth, but there are nuances, such as the stars that hang in the north forever like the North Star, which cannot be found on the celestial sphere of Mars.

Tang Yue glanced at the thermometer, and the outdoor temperature had dropped to minus 20 degrees Celsius.

The old cat opened the hatch of the airlock chamber and stepped out, shaking his hair in the cold, thin air.

It walked up to Tang Yue's side, lay on the sand with its arms on its pillow, and lifted Erlang's legs.

"Test complete?" Tang Yue asked.

"In the eighteenth mock test, I successfully landed Orion II to an altitude of 3,700 meters." The old cat looked up at the night sky, "It's a pity that the workstation has gone on strike, and I'm getting it to restart." ”

"Almost successful?"

"It's almost there." The old cat shook his legs leisurely, "I re-sorted the control program of Orion, corrected eight hundred and seventy-three errors, and we can make it successfully land in tomorrow's simulation test." ”

"How sure are you?"

The old cat snorted at the Milky Way.

"Good luck then." Tang Yue raised his fist.

"Good luck to us." The old cat bumped into him with his fist.

Tang Yue also lay down, leaning on the old cat, with his arm on the back of his head, he subconsciously looked for the location of the earth, but there was still only a deep space there.

"Do you know what star it is?" The old cat sticks out its toes and points to the night sky.

"I don't know."

"You should have learned."

"I forgot." Tang Yue was very thick-skinned, "I have learned, but you don't look at the year and month of it, you have long forgotten it." ”

"That's Ursa Minor, that is, the constellation Ursa Minor, the star on the handle of the spoon is Alpha Ursa Minor, the Chinese name is Gou Chenyi, and on Earth it is better known as Polaris." The old cat pointed to the starry sky and said their names one by one, "The constellations that can be seen on Earth can also be seen on Mars, this big cross is Cygnus, the constellation Cygnus, this very bright star is Tianjin Four, the pentagonal shape opposite it is Cepheus Cepheus, and Aquarius Aquarius ......"

There is no light pollution on Mars, there is no moon, and even the atmosphere is very thin, so the stars are very bright under the clear night sky, and Tang Yue can see more than 3,000 stars with the naked eye, they are like diamonds poured out on velvet by the gods, emitting dazzling light.

"What are you thinking?" The old cat asked.

"How beautiful the world is." Tang Yue said, "How ruthless." ”