"Tang Yue, Mr. Cat, look...... The sun is out. Mai Dong was halfway up the bloated extravehicular gown, and when he looked up, the golden sunlight poured in through the porthole and fell on the girl's pale cheeks.

From Mai Dong's point of view, the sunlight outlines a large dark arc, which is the edge of Mars, with a faint dark red in the dark shadows, a white glow from the thin atmosphere, and the sun breaks away from the diamond ring at a speed visible to the naked eye, and then burrows into the shadow of the solar panels.

The UNIS's massive panels are neatly aligned, slowly turning, like a series of sharp blades, slicing the sunlight to pieces.

Mai Dong narrowed her eyes, and light and shadow slid across her face in turn, outlining a round, small tip of her nose.

"In our eyes, the sun is always in the sky." Tang Yue said.

"I envy you." Mai Dong put on his helmet and buckled the lock, "Whether on Earth or on Mars, the world revolves around the sun, it is the center of the world, and everything is full of light...... But stay on the space station and you'll be able to see ...... The universe is so dark and deep that even a star as bright as the Sun cannot illuminate it. ”

"Sometimes I think that maybe humanity isn't ready to go far." Mai Dong checked the communication system, and the numbers were reflected on the glass mask, "People always want to find something to rely on, it used to be home, the earth, and the sun. Once you step into deep space, people will become spiritual helpless prodigals, think about a few years later, if someone really starts an interstellar voyage, those souls who have disappeared in the universe, will they find their way home? ”

"That's why there is Gagarin, there is Armstrong, there is Lao Wang Lao Tang, and there is us." Tang Yue said, "Mr. Lu Xun said that there is no road in this world, and when there are more people walking, there will be a road." ”

"Not to mention that it won't be years from now." The old cat interjected, "The road you paved will not be left by descendants." ”

Mai Dong passed through the passage, she left the Crystal module and entered the Hub node module, the closest exit to the super boom was the Dawn module, but this module has been completely destroyed, Mai Dong can only go to the Hope experimental module, where there is also an airlock room for astronauts to move out of the capsule.

"The EVA system is normal, there are no problems with the extravehicular suit, and all departments of the space station are normal." The old cat was in control, and the computer screen in front of him was all lit up.

Tang Yue quickly flipped through the manuscript paper in his hand, and while looking at the time, he wanted to make sure that there were no mistakes in his actions.

"The MSSRMS system is on, and the Canadarm70 robotic arm is on standby." The old cat enters the operation interface of the super arm, and the way to control the robotic arm on the space station is different from that in the Kunlun station. Analog manipulation can be used in the space station, and motion capture can be performed with joysticks, but in the Kunlun station, you can only use a keyboard and mouse, and use a keyboard and mouse to operate a robotic arm with twelve degrees of freedom, which no one can do except the old cat.

Slowly unfolded, this complex and expensive robotic arm is one of the most sophisticated tools on the space station, and it once saved Mai Dong's life.

"Mai Dong, check the tools, have you brought them all?" Tang Yue reminded.

"Bring it all."

Mai Dong is in the airlock chamber, and is decompressing.

With a "tick", the indicator light changed from red to green, Mai Dong took a deep breath and opened the outer hatch of the airlock room.

She was a little dizzy the moment she went out, it wasn't the first time Mai Dong had left the capsule, but every time she left the space station, it was like stepping into the abyss.

"It's a quarter past nine in the morning, five minutes after the operation starts." Tang Yue stood on the side, pressing the headset to contact Mai Dong, while staring at the time, "Mai Dong, are you okay?" ”

"Don't worry." The girl's voice was steady.

"I'm sending Miss Mai Dong over." The old cat said in a deep voice, the camera on the mechanical arm projected the scene image on the screen, and the old cat specially called a monitor to monitor the working status of the mechanical arm.

The main camera is installed on top of Mai Dong's head, and what Mai Dong sees is what the old cat sees.

The airlock chamber is more than 30 meters away from the S1 panel, and the robotic arm is approaching at a speed of half a meter per second.

Mai Dong pulled down the filter mask, and the sunlight was a little dazzling.

"It's five meters away...... Three-meter ...... One meter, OK! Lock! ”

"Mai Dong?"

“OK！ I can already see the sensor......" Mai Dong raised her hand to push the filter mask halfway up, and she hid in the shadow behind the solar panels to avoid direct sunlight.

The S1 battery pack has a total of two solar panels, which are jointly mounted on a set of torsion mechanisms, and are one of the main sources of power for the United Space Station. A panel is more than 40 meters long and is made of monocrystalline silicon and covered with a protective film, which gives the blue solar cell a dark brown look.

The actuator of the battery board is mounted on a truss, which is a very large and complex mechanical structure, and the light sensor is an inconspicuous gadget, which is a protruding plexiglass hemisphere, and this plastic shell is just a protective cover, and inside the cover is a small chip flat on the space station, which is the main body of the sensor.

The overall appearance looks a bit like a surveillance camera, but the task of the light sensor is not to image, but to discern the direction of sunlight.

A set of battery boards has two sensors, which are backup to each other, one is broken and the other is broken, but this time it is the main control line that is damaged, so it must be repaired manually.

"Find your place!" Tang Yue instructed, "Do you remember the operation steps?" Find the right position, then open the shell, and you're done with the mission of getting out of the cabin! ”

"Find the right spot...... Find the right position......" Mai Dong nodded, and the water vapor exhaled condensed on the mask.

The actuator shell is covered with several layers of solid polymer film, which is used for thermal insulation, and if you want to open the shell, you have to cut all the insulation materials first.

Mai Dong took out the small electric circular saw from the tool bag on his chest.

Tang Yue and the old cat stayed in Kunlun Station, the four cameras on the super arm all turned to Mai Dong, one person and one cat watched the bloated white figure operating awkwardly from different angles, Mai Dong only had her feet fixed on the super arm, her body slowly swayed in the gravity-free environment, and the tools slipped from her hands several times.

"Don't be in a hurry, don't be in a hurry...... Wheat Dong. Tang Yue propped one hand on the table, and the other hand pressed the old cat's shoulder, "There is plenty of time." ”

"There are four layers of cloth on the outside." Mai Dong replied, "I cut the first layer, opened a forty-centimeter-long opening, and then I am going to cut the second layer." ”

"Would you like to take a break?"

"No, you don't." Mai Dong let out a sigh, "I'm not tired yet. ”

"Don't force it." The old cat spoke up, "Miss Mai Dong, fatigue will affect work efficiency. ”

"I feel like a doctor right now, operating on this giant." Mai Dong turned his head to look at the huge space station behind him, "When I was a child, I also wanted to be a doctor...... If I had become a surgeon, I probably wouldn't be here now. ”

It took about ten minutes to tear open the second layer of insulation, and when cutting the third layer, there was a little trouble, a thin steel wire hindered the progress, which was a bit unexpected by everyone, no one knew that a steel wire would pop out here, and the old cat suggested returning to the space station to replace the tools, but Mai Dong stubbornly filed it.

When the mission was halfway through, Mai Dong finally cut all the plastic films.

"I see the shell!"

"Do you see the access cover?" Tang Yue asked, "Four inner pentagonal screws?" ”

"Right...... That's right. Mai Dong raised his head and smiled at the camera, "You're right. ”

"Next, remove the screws and take the case apart! You still have fifty minutes left. ”