An hour later, the old cat came back in embarrassment.

"Hell, why is the wind getting stronger and stronger in this damn weather?" The old cat was disgraced, closed the hatch of the airlock room, and untied the safety rope on his waist with a curse, "Tang Yue...... What happened to you? ”

"Autistic."

Tang Yue sat slumped in his chair, covering his face, and he had nothing to love.

The old cat took off the helmet of the cabin suit, put it on the table, and then unzipped it and jumped out of the spacesuit lightly, "What is the wind speed now?" ”

"...... per second Forty-three meters. ”

The old cat turned his head and glanced at the display of the anemometer, four dazzling red numbers.

43.59。

The old cat frowned, with a wind speed of forty-three meters per second, the situation was not optimistic.

It glanced at the time again, it was half past six in the morning, it was reasonable to say that the sun had risen at this time, but it was still dark outside the window, and it was obvious that this poor sunlight on Mars had not penetrated the dust more than ten kilometers thick above the head of Kunlun Station. The Eagle's system computers are all activated, the self-test has been completed, and the auto-docking program has been set up and can be launched at any time - as long as the wind speed drops below the safe line.

"Is there any hope for us?" Tang Yue asked.

"As long as the weather conditions improve, there is hope." The old cat replied.

"At this wind speed, can the Eagle still be launched?" Tang Yue asked.

He hoped that if the wind speed really couldn't be lowered, then it would be better to forcibly launch the lander, at least the design limit of the Eagle spacecraft was 50 meters per second, and the wind speed of more than 40 meters should not be too threatening.

"Yes, but it's not safe." "Even if the storm doesn't fail the launch of the Eagle spacecraft, it will still interfere with the lander's normal orbit and cause the final rendezvous to fail." ”

Tang Yue looked at the cup on the table in a daze, and an impulse suddenly rose in his heart, he wanted to smash this water cup hard.

If the final rendezvous and docking fails, then there is simply no point in launching into space.

He got up and stood in front of the porthole and looked out in the direction of the Eagle spaceship, Tang Yue knew that the spaceship was standing a hundred meters away, already full of relief supplies.

This situation is really worrying, Tang Yue can suddenly understand the people who are in the shipwreck, you can receive a distress signal from the survivors, you know that they are all alive, but because of this damn storm and big waves, the helicopter with supplies and doctors just can't take off.

Hoping for better weather, you watch as the time slips away and the lives of survivors die one by one.

"You said we only had a 1 in 10 chance." Tang Yue turned around, leaned against the bulkhead and slowly slid on the floor, and whispered, "Then the probability of our failure is nine out of ten." ”

"That's right."

"Is that hopeless?"

"Tell me, how did you get here?" The old cat asked.

Tang Yue was stunned for a moment, not understanding what this question meant.

The old cat took a step closer and looked into Tang Yue's eyes, it was very short, not much taller than Tang Yue sitting on the floor.

"In this mission to Mars, how many candidates are there to participate in the selection with you?" The old cat asked.

"Add me...... There are ten in total. ”

"Then you're the tenth." The old cat pointed to the top of his head, "That girl is also a tenth, do you know how much I am?" ”

Tang Yue shook his head.

"I am the only one in the same batch of 10,000 robots who has passed the audit." The old cat said, "I'm one in 10,000." ”

Tang Yue: ...... You say this to tell me that you are a thousand times better than me?

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"I want to tell you that the earth is gone, but we are still alive, you, me and that girl are only three-billionths of sixty-five-billionths, and if you expand the denominator to all life on earth, then you may even be one in a hundred billion." The old cat said lightly, "Even a hundredth of a hundred billion things have happened to you, so why should you be afraid of any one-tenth?" ”

When the old cat returns to his workbench, a rectangular map of Mars unfolds on the computer screen, and a pale blue sine wave appears on the map.

This sine wave is the trajectory of the joint space station, to be precise, it is the trajectory of the space station's sub-star point, the so-called sub-star point, is the vertical projection of the spacecraft on the ground - because the orbit of the spacecraft has a certain angle with the equator, not completely parallel, so on the spread out map, the projection point of the space station is moving up and down, and the trajectory is a regular sine wave.

When the old cat got in touch with the United Space Station before, he re-positioned the space station accurately, and now the orbit of the space station is stored in the computer of the Kunlun station system, and it is also stored in the computer of the Eagle spacecraft, and this orbit can be very accurate, almost exactly the same.

The old cat is trying his best to reduce the error, due to the weather, the Eagle spacecraft is likely to lose contact after launch, and the Kunlun station cannot guide it, so the orbit change and rendezvous can only rely on the lander's own computer, this difficulty is like playing billiards a thousand meters away and scoring a hole...... In the case of complete unattendance, there is only a 5% chance that the Eagle spacecraft will dock autonomously.

The exact figure is 4.837%.

The old cat told Tang Yue before that the probability of success was one in twenty, but in fact, it slightly raised this possibility, and the upper stage rocket RD-0172 propellant of the payload compartment could only support two orbit changes, so the total probability of successful docking was 9.44%.

Less than a tenth.

"What is the wind speed now?" The old cat crackled on the keyboard, his eyes fixed on the computer screen.

"Forty-three meters per second."

The old cat nodded, no longer spoke, and the two cat's paws were beating on the keyboard, and it was correcting the flight program of the lander minute by minute, and the parameters that were originally accurate to three decimal places were accurate to five decimal places again, and the parameters that were originally accurate to five decimal places were accurate to ten decimal places again.

Only the sound of the old cat tapping on the keyboard was left in Kunlun Station, and Tang Yue didn't dare to disturb it.

"What is the wind speed now?"

"Forty-two meters per second."

The old cat's face sank like water, it played the rigor and meticulousness that a robot should have, optimizing the launch procedure of the Eagle spacecraft over and over again, the complex parameters and function images on the screen were reflected in the pair of translucent cat pupils, the old cat was making a final effort, it was struggling against the 9.44% probability.

Hundreds of exact parameters may increase this probability to 9.441%.

Increase the success rate by only 0.001%, but it still makes sense.

After all, the probability that Tang Yue can survive from the disappearance of the earth is 0.0000000001%, and the probability of 1 in 100 billion may not have the slightest meaning in the eyes of ordinary people, it is no different from zero, but it is the whole meaning of Tang Yue's life.

Then 0.001% is the meaning of one million Tang Yue.