Dead.

Tang Yue opened his eyes, and there was a dark red light flickering in the darkness where he couldn't see his fingers, which was the electronic clock next to the pillow.

He stretched out his hand from the quilt and picked up the clock to check the time, the number on the LCD screen was 3284429, and it was still beating second by second.

The light came through the gap in the curtain of the passenger cabin, and there was a faint sound of clicking on the keyboard, the old cat was still working all night, Tang Yue only slept five hours a day now, but the old cat was all day long, and they all wanted to get their work done as much as possible before the comet fell.

Tang Yue threw the clock aside, pulled up the cover to cover his face, closed his eyes and wanted to go back to sleep, but he couldn't sleep at all.

The clock face slammed down on the bed, the light of the countdown flickering through the cracks in the sheets.

In Tang Yue's past 20 years of life, there has never been such a moment, Tang Yue can perceive the passage of time so clearly...... It moves slowly and silently through the night, like quicksand like a river, like neutrinos that hardly interact with anything.

In classical physics, time is people's description of the change in the state of motion of matter, which is based on the empirical convention of human perception - not the matter or energy that can be seen and touched, but the concept of entropy is introduced into thermodynamics to describe and measure the passage of time, this scale is very intuitive and measurable, and it is no longer an ethereal and idealistic thing like the psychological effect of sensory experience - the entropy increase in the universe is irreversible, so time cannot be reversed.

Tang Yue glanced at the countdown again.

3284352。

"Mr. Cat...... I ......"

The sound of a girl choking up sounded faintly outside the door, with a crying voice.

Mai Dong never cried in front of Tang Yue's eyes, although she and the old cat knew that Tang Yue was about to die, but one person and one cat still maintained normal life and work habits. Mai Dong would still introduce the plants he raised to Tang Yue, describe the stars he saw with a telescope, or complain to him that there was a problem with the work of the incubator, but in fact, this girl was not the kind of person who was good at hiding her emotions, she often smiled and smiled, and her expression suddenly became lonely, and her eyes showed sadness like water.

Tang Yue lifted the quilt, put on his clothes and got out of the crew compartment.

The hall was dimly lit, with no lights on, and the only source of light was a computer monitor on the desk.

"Can't sleep?" The old cat asked.

"Can't sleep." Tang Yue pulled over a chair and sat down, and glanced at the communication video, "Where is Mai Dong?" ”

"I'm tired of crying and go to rest." The old cat replied, "She tried to find a way to save you, but none of them worked, so she despaired again." ”

"This girl is so stubborn." Tang Yue smiled, although Mai Dong looked soft and weak, she was actually quite stubborn...... This can be seen from her resolute participation in the Mars landing plan, and everyone advised her not to go, but Mai Dong gritted her teeth and got on the thief ship.

She cried so much and tenaciously that she wiped away her tears after crying.

"She really wants to save you." The old cat repeated.

Tang Yue was stunned, "I know." ”

There are only a few things in this world that will make you not hit the south wall and not look back, and you will not look back if you hit the south wall, it is either related to whether you can survive.

It's either about why you're alive.

"But you didn't know how crazy she was: Miss Maidon even offered to change the comet's orbit by having the space station or the Orion spacecraft hit the comet." The old cat said, "This girl is a very bold and courageous person at heart, and dares to pay any price to achieve her goals. ”

"The result?"

"Impossible." The old cat replied, "I told her that it was impossible, that the mass of either Orion II or the Union Space Station was too small to affect the comet's orbit." ”

Tang Yue nodded, this was the expected result.

The Orion-2 spacecraft plus the United Space Station has a total mass of no more than 1,000 tons, but the total mass of the comet's comet nucleus is as high as 102 trillion tons, and the mass of the former is only 100 billion parts of the latter.

But this little ant is already all the hole cards in Tang Yuemai Dong's hand.

"You can't sleep because you're anxious and insomnia?"

"Nope." Tang Yue shook his head, "I just want to see the sunrise, after all, I only have thirty-six sunrises to watch at most in the future, and one less time to see it...... Thirty-six days later, the sun couldn't see me, and I felt sorry for it. ”

"Aside from watching the sunrise, before death comes, have you ever thought of trying something new that you haven't tried before?"

"For example?"

"Take off your pants outside and take off your big size."

Tang Yue was taken aback, "I still want to live for two more days." ”

"Then you can take off your pants and face ......the comet the moment it hits," said the old cat, "and it will help keep the body intact." ”

"Why?"

"When you bend your body and your butt towards the comet's landing point, you are resisting the most violent impact with the strongest part of your body, which is like the thermal insulation of the spacecraft's return capsule, if you think about it, are the two very similar? Shock waves form on your glutes and the air flow down your back, which significantly reduces the force on your body. "The old cat is full of gibberish.

Tang Yue was dumbfounded.

"Then why don't I just dig a pit and lie down?"

"Obviously, the lying position is not cool enough." The old cat said, "Anyway, they are going to die, so it's better to die a little more shocking...... Just like the boy in Pompeii who had to make the last shot when Mount Vesuvius erupted, the volcanic ash forever fixed his heroic appearance at that moment in the long river of time for future generations to admire. ”

"If you're lying on your stomach, people will dig you out and just say, 'Oh, this is a guy who died on a comet impact.'"

"But if you raise your butt at Mars, then when the descendants dig you out, they'll be amazed: Oh my God, it's a butt lift......"

"Stop!" Tang Yue interrupted it, God knows what kind of nonsense and foul language the old cat can spit out if he goes any further, what did Lao Wang teach it?

"I see the sun is out."

"There are still more than three hours before sunrise." The old cat pointed to the hatch of the airlock chamber.

"Then I'll go out and wait."

Tang Yue got up, took off the Mingguang armor extravehicular suit hanging on the wall, stretched it out and drilled it in, the old cat came forward to help, Tang Yue worked hard to get into the helmet of the spacesuit, the old cat helped him close the zipper, install the life support system, patted the hands and feet of the Mingguang armor, the green indicator lights lit up one by one, and each module worked normally.

"I'm leaving." Tang Yue patted the old cat on the shoulder.

"Don't go back forever." The old cat laughed, "GoodLuck." 8)