Mai Dong stumbled through the narrow passageway, burrowed into the airlock of the Orion spacecraft, and hurriedly put on his heavy extravehicular spacesuit.

"Quick! Fast! Fast! Hurry, hurry, hurry! Girl, hurry up! Faster! The old cat stretched out his arms remotely while staring at the time on the screen.

The Eagle spacecraft is approaching the Joint Space Station, time is not waiting, Mai Dong only has this one chance, and if they miss it, they will no longer be able to catch the lander.

Mai Dong fastened the safety cable to himself, which was the longest nylon safety cable in the space station, a full 500 meters long, capable of withstanding more than 15 tons of tension, and then struggled to unscrew the outer hatch of the airlock chamber, panting and shouting: "Mr. Cat! Mr. Cat...... I'm out! ”

“OK！”

The big arm was already waiting for her outside the airlock, Mai Dong gently pushed the bulkhead of the airlock cabin, floated out of the cabin awkwardly, stood on the maintenance platform at the end of the mechanical arm with both feet, buckled and locked.

"Sit tight, girl!" The old cat said in the tone of a Lanxiang graduate excavator master, "I'll send you over!" ”

The super arm began to move, and the long arm that had been folded together opened one by one, carrying Mai Dong close to the expected position of the Eagle spacecraft, and even the United Space Station adjusted its attitude and rolled slowly. Looking at it from afar, it really looks like the space station has stretched out an unusually long hand to intercept the passing Eagle spacecraft.

Although it is said that it is to capture the Eagle spacecraft, the Super Boom is not a crab claw after all, and it is impossible for it to directly grab the lander flying at high speed. On the contrary, since the Super Boom is actually a rather fragile structure and cannot withstand a strong impact, it not only cannot directly intercept the Eagle spacecraft, but also has to pay attention to keeping a distance and not having physical contact with the lander to avoid accidents.

So the person who really undertook the task of capturing it was Mai Dong.

She carried a hand-held laser rangefinder and another nylon safety rope on her chest.

Mai Dong stood on her big arm, and through the transparent mask, she could see the brown and red earth of Mars spread out under her feet, and the water vapor exhaled by the girl condensed on the glass, and the brilliant light reflected in her eyes.

This is not her first spacewalk, usually when the captain Lao Wang went out of the capsule for maintenance work, Mai Dong also begged the captain to take him out, floating in the void and deep vacuum, she is often excited and nervous, this girl always said that if you live in space for the rest of your life, it would be a wonderful thing.

Lao Wang is very helpless, he is a man with a wife and children, how can he live a lifetime in space?

Those who have lived in space all their lives in the mouth of the public have another great title...... Martyr.

"Miss Mai Dong!" The old cat's voice sounded in the headphones, "Repeat the essentials of the operation!" ”

"Good...... Essentials...... Five seconds! ”

"Yes, five seconds!" The old cat nodded.

Five seconds is the operation time that the old cat bought for Mai Dong, the length of the super boom is seventy meters, and the vertical distance between the flyby trajectory of the lander and the space station is sixty meters.

If you simply calculate, draw a circle with a radius of 70 meters, and the cross-sectional segment 60 meters away from the center of the circle is the position where the Eagle spacecraft can be contacted - the length of this line segment is 60 meters, and the relative speed of the lander is 6 meters per second, so it will take about 10 seconds for the Eagle spacecraft to pass through the capture range of the big arm.

But the Super Boom isn't a straight line, and it can't keep up with the flying Eagle spacecraft, so Mai Dong can really get in touch with the lander...... Only five seconds.

During these five seconds, the old cat will remotely control the super boom to move in the same direction as the Eagle spacecraft, trying to reduce the relative speed between the two and create conditions for Mai Dong's movement.

Mai Dong had to catch the Eagle spacecraft in five seconds.

"Safety Rope!"

"Yes, safety rope." The old cat nodded, Mai Dong needed to fasten the safety cable to the hull of the Eagle spaceship, the high-strength safety cable can withstand more than ten tons of tension, and it has the ability to make the Eagle spacecraft brake.

However, the surface of the lander is round and smooth, and there are very few places where the safety cable can be fastened, and there is a handle on the emergency escape hatch door of the command module, and there is one on each side of the fuselage of such a hatch, and Mai Dong only needs to fasten the safety cable to one of the handles, and he can pull the Eagle spacecraft. The high-strength safety rope is 500 meters long, and once the connection is confirmed, the old cat will gradually tighten the rope and slowly slow down over a distance of 500 meters, eventually slowing down to zero.

"Listen to Miss Mai Dong, now I'll listen to your instructions." The old cat said, "Is the laser rangefinder on the body?" ”

"Brought it." The girl pulls out the laser rangefinder from the tool pouch on her chest, the hand-held laser rangefinder is a DV-shaped object, small in size, but very accurate, and in previous rendezvous missions, astronauts often used it to assist in docking.

Mai Dong could already see the Eagle spaceship in the distance, a small dot reflecting white light, which was unusually conspicuous against the pitch black background.

She lifted the laser rangefinder.

"The distance is 1202.44 meters...... Mr. Cat, the position is 0.52 meters further to the left. ”

"Roger."

The old cat remotely controlled his big arm and moved slowly.

"There is also a deviation of 6.2 degrees...... Mr. Cat. ”

"Roger."

The Eagle spacecraft was no longer controllable, and Old Cat and Mai Dong could only adjust their attitude to adapt to the state of the lander. There was no doubt that there was a high risk in doing so, and Mai Dong had to get close to the Eagle spacecraft in the same way, too far to reach, and too close to scratch and impact.

This is like letting Mai Dong stand on the side of the road with a rope in her hand, waiting for the rear eight-wheeled trailer weighing more than ten tons to pass by, she wants to hang the rope on the rearview mirror of the car at the moment the truck passes, if the position is deviated, either the rope cannot be hung, or the person with the rope hangs up.

This is a surgical-like precision operation, allowing an old cat 300 kilometers away to remotely control a 70-meter-long robotic arm to make subtle adjustments at the decimeter or even centimeter level, but no doctor in this world can operate on people with a 70-meter-long lancet.

"The distance is 1031.74 meters, Mr. Cat, and it is 0.30 meters to the right." The girl's voice was soft, and she watched as the Eagle in the eyepiece grew larger, and now she could see the livery and logo on the lander.

"Roger!"

"The elevation angle is adjusted up by 3 degrees."

"Roger."

The old cat's answer was concise and powerful.

"Locked." Mai Dong put away the laser rangefinder and stuffed it into the toolkit on his chest.

"Locked!" The old cat pressed the button, and the motor and bearing inside the super boom were stuck one by one, and the position was locked!

Mai Dong grabbed the nylon safety rope in his hand and took a deep breath.

"Miss Mai Dong! Miss Mai Dong! I see that the air pressure inside your spacesuit is dropping. The old cat reminded.

"Hmm." The girl nodded, "I'm turning down the air pressure, otherwise the astronaut will be too bloated, his hands and feet can't bend, and his movements will be inconvenient." ”

Mai Dong stood alone in the deep space, she looked at the lander in the distance, her heart suddenly calmed down, the Eagle spacecraft approached silently, and the colorful eagle on the fuselage was huge and eye-catching.