Courtyard House: Primordial Chaos Pearl

Within the safe zone of Pallas's northern hemisphere, the Red Star-130G geological adaptive agricultural machine is undergoing its first field test. This machine, specially modified for Pallas's anomalous gravity environment, is equipped with a "gravity sensing module" optimized by Chaos Beads, dynamic dampers are added to the joints of its robotic arms, and its tracks adopt a deformable structure, allowing it to move smoothly across the crimson ground like a nimble metal beetle.

"Gravity field strength 1.2G, robotic arm damping adjusted to 30%, track deformation angle 15 degrees." The agricultural machinery automatically adapts to the parameters, and the mining arm is precisely aligned with the predetermined drilling point. When the drill bit rotates, the machine body does not deviate in the slightest—this is a level of precision that no agricultural machinery could achieve before on Pallas, where gravity is abnormal.

Lin Xiangyang sat at the data console in the command cabin, his fingertips swiping across the real-time parameters on the screen: "The gravity sensing module has a response time of 0.01 seconds, which is perfectly able to keep up with the fluctuations in the local gravity field. When passing through the weak gravity zone just now, the tracks automatically deployed to increase the ground contact area, avoiding 'drifting'; after entering the high gravity zone, the damper automatically increased the resistance, and the robotic arm's operating accuracy error did not exceed 0.3 centimeters."

Yan Jiecheng gripped the control lever and personally tested the agricultural machine's tunneling function: "The Chaos Pearl-improved superlattice wear-resistant alloy cutterhead is indeed powerful. The tunneling speed is 40% faster than before, and it can automatically adjust the rotation speed according to the hardness of the rock strata. It won't get stuck when it encounters hard mineral veins."

Lin Dong stood to the side, watching the agricultural machinery operate smoothly, a relieved smile on his face: "The success of the geologically adaptive agricultural machinery has solved the core problem of the development of Pallas. Next, we can start the development of the ice layer in the safe area to provide a stable water source for the expansion of the ecological cabin."

The ice development project was quickly launched. The mining arm of the Hongxing-130G agricultural machinery was switched to an ice-breaking drill bit to drill holes in the designated area. As the drill bit went deeper, the crisp sound of the ice breaking was transmitted back through sensors, and white ice chips slowly drifted down under low gravity, like a mini snowstorm.

"Drilling depth 10 meters, reached the bottom of the ice!" the operator reported. "Liquid water signal detected, approximately 12 meters from the surface. The preliminary estimate of the lake area is about 5000 square meters!"

He Yushui immediately ordered: "Stop drilling and release the underwater exploration robot! Be careful to keep the borehole sealed to prevent liquid water from vaporizing in a vacuum environment."

The underwater exploration robot slowly submerged into the borehole, its built-in LED lights illuminating the world beneath the ice. On the screen in the command cabin, the image gradually became clear: beneath the ice was a deep blue liquid lake, its water crystal clear, the bottom covered with a layer of fine white sediment, and the surrounding ice walls were covered with patches of flocculent organisms, like soft clumps of cotton, gently floating in the water.

"This is... a complex microbial community!" He Yushui's voice was filled with barely suppressed excitement. "It's not a single strain, but a multi-species symbiotic system! The flocculent structure may be an aggregate of microorganisms, possibly containing bacteria, archaea, or even lower algae."

The probe collected water and microbial samples, and the data it transmitted back astonished everyone:

The lake water is 98% pure, contains trace minerals and methane, and has no harmful toxins.

The microbial community contains at least 8 different species, forming a complete primary food chain;

Some microorganisms have photosynthetic capabilities and can utilize the faint starlight transmitted through the ice layer for metabolism;

Polysaccharides were detected in the aggregates, which may enhance crop stress resistance.

"Incredible!" Yan Jiecheng couldn't help but exclaim. "The subglacial lake on Pallas has such a complex ecosystem; this is an unprecedented discovery in the asteroid belt!"

Lin Xiangyang stared at the image of the microbial aggregates, his eyes lighting up: "The polysaccharides formed by these microbial aggregates might serve as 'resistance agents' for interstellar crops. The environment on Pallas is extreme, and crop growth is easily affected by gravitational fluctuations and radiation. If this polysaccharide could be added to the nutrient solution, it might improve the crop's adaptability."

When the news reached Earth, the Alliance Council convened another emergency meeting. Representatives from various countries, witnessing the discovery of the lake beneath the ice, were all awestruck.

"The subglacial lake ecosystem has extremely high scientific research value!" the European representative said excitedly. "We propose the establishment of the 'Panasonic Subglacial Ecology Joint Laboratory' to conduct in-depth research on the metabolic mechanisms and ecological functions of microbial communities."

Brazilian representative Carlos immediately responded: "Our tropical crop experimental chamber can provide a sample cultivation site to test the effects of microbial polysaccharides on different crops."

Indian representative Rajiv added, "India's bio-fermentation technology can produce microbial polysaccharides on a large scale, and once proven effective, it can be quickly applied to the eco-cabins at various supply stations."

Lin Dong proposed a specific plan: "First, establish a small biological laboratory on Pallas to conduct preliminary culture and analysis of microbial samples; second, under the leadership of He Yushui, unite experts from various countries to formulate safety regulations for microbial research and application to avoid ecological invasion; third, include crop trials of microbial polysaccharides in the alliance's key projects and conduct tests simultaneously on Pallas, Cosmos, and Mars bases."

The plan was approved unanimously. A temporary biological laboratory was quickly set up at the outpost on Pallas. He Yushui and her team inoculated microbial samples into culture media and conducted large-scale cultivation in a simulated subglacial lake environment with low temperature and low light.

"The microbial growth rate is faster than expected, and the aggregate formation time has been shortened to 72 hours." He Yushui recorded the data. "The polysaccharide extraction rate reached 30%. Preliminary tests show that after being added to the nutrient solution, the radiation resistance of the interstellar rice increased by 25%, and its resistance to gravity fluctuations was also significantly enhanced."

Meanwhile, significant progress has been made in the ice layer development project. The Hongxing-130G agricultural machinery has built a closed water intake device on the ice layer. The lake water is transported to the water treatment module of the ecological cabin through a special pipeline. After filtration and disinfection, part of it is used for crop irrigation, and part of it is decomposed into hydrogen and oxygen to supplement energy and oxygen reserves.

The expansion plan for the ecological cabin is progressing smoothly. The newly added modular cabins are connected to the original ecological cabins, and the cultivation racks are filled with crops under cultivation: oxygen-resistant Brazilian tropical corn, water-saving Indian wheat, and improved interstellar rice with added microbial polysaccharides... The cabins are lush and green, full of the breath of life.

That day, Lin Dong received a video call from the courtyard. On the screen, Yi Zhonghai, Liu Haizhong, and Yan Bugui were sitting around the new exhibition area of ​​the Science Popularization Museum – "The Ecological Wonders Under the Ice of Pallas". The exhibition area displayed a simulated model of the subglacial lake, an enlarged model of microbial aggregates, and a miniature version of the Hongxing-130G agricultural machine.

"Lin Dong, I heard you discovered a 'space lake' and new microorganisms beneath the ice on Pallas?" Yi Zhonghai's voice was filled with curiosity. "Can those little things really make crops grow better?"

"Yes, Grandpa Yi," Lin Dong explained with a smile, "the polysaccharides produced by these microorganisms can make crops more radiation-resistant and better adapted to extreme environments, giving us more confidence in farming on more distant planets in the future."

Liu Haizhong held up the calligraphy he had just written, which bore four powerful characters: "Spring Hidden Beneath the Ice." "This calligraphy is for you, to celebrate your new discovery! I'm so proud of you when I talk about you with the neighbors!"

Yan Jiecheng's wife walked into the camera's view carrying a plate of freshly steamed buns: "These are made with flour milled from wheat sent back from your Mars base. They smell amazing! When the crops on Pallas are harvested, send us some to try!"

Lin Xiangyang leaned closer to the camera and said excitedly, "Grandpa Yi, Grandpa Liu, Grandma Yan, we've already grown our first batch of vegetables on Pallas! We'll send them back to you when the next harvest is plentiful! We also plan to build an 'ecological observation station' near the subglacial lake to monitor changes in the subglacial ecosystem in real time."

After the video call ended, Lin Dong turned to look at the screen in the command cabin. On the screen, the Red Star-130G agricultural machine was setting up an ecological observation station beside the subglacial lake, and the detection robot was slowly moving in the lake water, transmitting back dynamic images of the microbial community in real time; inside the ecological cabin, the interstellar rice with added microbial polysaccharides was growing well, with full ears of rice and lush green leaves.

He Yushui approached with the latest experimental report: "Microbial polysaccharides have a significant effect on improving crop stress resistance, and the alliance has decided to promote their application at all refueling stations. Moreover, we have discovered that these microorganisms can also decompose sediments at the bottom of the lake, releasing nutrients such as nitrogen and phosphorus, forming a natural 'underwater fertilizer reservoir'."

Yan Jiecheng added, "The water resources in the subglacial lake are sufficient to support the operation of three large ecological modules. We can launch the second phase of the Pallas Resupply Station project and transform this place into an 'ecological hub' of the asteroid belt."

Looking at the image of the lake beneath the ice on the screen, Lin Xiangyang wrote a new note in the lighthouse system's log:

"Smart agriculture adapts to local conditions, showcasing the power of technology; spring hidden beneath ice is a gift from nature. Every discovery on Pallas reminds us that the mysteries of the universe lie not in conquest, but in symbiosis; the meaning of exploration lies not in arrival, but in progress."

Lin Dong looked at the statement with absolute certainty. The subglacial lakes and microbial communities on Pallas not only provide new technological directions for interstellar agriculture but also deepen humanity's understanding of the universe. In the future, they will discover even more mysteries on this planet, and more alliance members will join them to jointly build an interstellar agricultural supply chain.

And this red star that rose from the courtyard house will eventually carry human wisdom and awe, writing more legends of coexistence with nature in the vast universe.