Tang Yue glanced up at the sun hanging low in the sky and set up the solar panels.

The structure of the solar panels is very simple, there is no complicated steering mechanism, in the final analysis, in order to reduce weight, a total of more than 40 panels, all the power supply in the Kunlun station is responsible for these panels.

The battery panel gives priority to the power supply of life support systems such as batteries, OGS, temperature control, and fresh water filtration, followed by the communication system, lighting system, and the main computer of Kunlun station. The system computer of Kunlun Station is a large power consumer, in order to save energy, the old cat usually turns off most of the functions of the workstation, anyway, there is no scientific research observation work now, after the earth disappeared, Tang Yue stopped all academic research.

The last time the system computer of Kunlun Station was at full firepower was three months ago, when it was transporting supplies to Mai Dong and calculating the orbit, and the computer has not received any important tasks since then.

Conduct a self-check every day, check the various functional modules of the Kunlun station, and then send greetings to the joint space station, this is the daily work of the Kunlun station system computer, this kind of work can be done even by the oldest 386 machine, it is really blind to its powerful CPU and data processing capabilities.

Tang Yue set up the last piece of the battery board, and then leaned on the small cart and slowly sat down to rest.

Forty solar panels were neatly laid out on the sand, and Tang Yue nicknamed them "Battery Farm", and he walked around the solar panels, resting every day from sunrise to sunset, like a farmer farming.

Not far behind Tang Yue is the descending stage of the Eagle spacecraft, the upper upgrade of the lander was launched three months ago, the descending stage is still here, it is a cylinder five or six meters high, supported by a thick landing gear, the white surface paint has been blackened by the tail flame of the engine, and it is still very conspicuous.

Tang Yue often went to the Eagle spaceship to wander around, as if visiting a neighbor or an old friend, sitting down to talk to it...... Although the Eagle never squeaks, only listens in silence.

There are so many friends for him, Mai Dong on the space station, the old cat in the Kunlun station, the lander standing on the sand, the Martian stray dog in the garage, these people and things constitute a small human society. This is Tang Yue's world, as long as he doesn't get out of this small world, he can still feel the protection and warmth from human civilization.

"Tang Yue, can you hear me? There's another tomato fruit set in the space station! ”

Mai Dong's voice sounded in the channel, and the tone was pleasantly surprised.

Tang Yue couldn't remember how many times Mai Dong had told him tomatoes.

"How many tomatoes do you grow?"

"Hmm...... There are probably seven or eight tomatoes, and there are not many tomatoes. "There are also ten Arabidopsis thaliana, eleven lettuce, twenty-three lettuce, seventeen potatoes, and a batch of Candida hairis." ”

"Do you want to turn the station into a botanical garden?" Tang Yue asked, "With so many plants, they will compete with you for oxygen and water...... You don't lack food, why do you grow so many tomatoes? ”

"I pay attention to the fact that the water consumption is well controlled, and the incubator uses the capillary osmosis to transport water, which minimizes the waste of water." Mai Dong replied, "It's too deserted in the space station, a little more plant, a little more lively." ”

"Lively? Plants don't speak......"

Tang Yue was stunned, he was the same when he said it, the Eagle spaceship also couldn't speak, he still went to chat with the other party.

"The tomatoes are growing very well, and the first fruiting plants are already very large and brightly colored...... These are the seeds that I have carefully selected at the beginning, and the survival rate is more than 97%. The joy in the girl's voice could be heard, and she had been taking care of the plants for the past three months, and the tomato seedlings that had sprouted had now grown and borne fruit, and Mai Dong was as happy as a vegetable farmer with a good harvest.

"Girl, do you major botany or vegetable science?" Tang Yue asked, "Do you study scientific vegetable growing?" ”

"My research direction is 'the relationship between plant growth and ecological cycles in a closed environment under long-term high irradiation microgravity conditions'." Mai Dong spat out an extremely long sentence.

She paused, then continued:

"Simply referred to as space growing vegetables."

"Hello vegetable farmer."

"Originally, we didn't grow vegetables, there are many sample plants used in the experiment, most of them are algae with simple structures, such as Candida and brown algae, the environmental conditions required for the growth of mature angiosperms are too harsh, and they are too fragile, if you want to try to transform the Martian environment in the future, or build a small ecosystem in the spacecraft, then you must start with simple algae." Mai Dong continued, "Algae, a lower plant, is the target of my research. ”

The background of the girl's speech was accompanied by the sound of plant leaves rubbing against each other, and it was clear that the girl was picking tomatoes while talking.

"Five...... Six, seven, wow this big ...... I'm going to freeze the tomatoes so I can keep them a little longer. ”

Mai Dong is babbling about tomatoes, it seems that what studies on plants and ecospheres under microgravity conditions, what real targets are algae are fake, this girl has been completely immersed in the joy of the harvest, and while counting, throwing tomatoes into the basket, a vegetable farmer through and through.

"It doesn't pollute, does it?"

"It's all soilless." Mai Dong shook his head, "It won't cause pollution." ”

"Can potatoes be cultivated without soil?"

Tang Yue was a little surprised, shouldn't the potato be buried in the soil? How can potatoes be grown without soil?

"Tubers or root plants can be aeroponics, do you know aeroponics? It's to atomize the nutrient solution and then you can see the potatoes growing suspended in mid-air. Mai Dong smiled, "None of this is difficult for me. ”

Tang Yue got up, sent the trolley back to the garage, and then returned to Kunlun Station - he had finished laying out the solar panels, and then he could go back to simply eat something, replenish his energy, rest for half an hour, and then go about his afternoon work.

Afternoon work includes:

Check the status of all aspects of Kunlun Station.

Quarrel with the old cat.

Check the status of the Martian stray dogs.

Quarrel with the old cat.

Recycle solar panels before the sun sets.

Quarrel with the old cat.

Tang Yue opened the hatch of the airlock chamber, staggered into the airlock chamber, turned around and closed the hatch, and opened the decontamination system.

"Old cat——! I am back. ”

The old cat opened the inner hatch, Tang Yue walked in breathlessly, and suddenly stumbled under his feet and fell to the floor.

"Tang Yue?"

Tang Yue looked down at his feet, his calves trembled violently, as if he was cramping, and he couldn't exert himself, "Old cat...... I seem to have something wrong with my feet. ”