The thrusters are already perfectly synchronized with the comet's.

At this moment, the comet is like a huge cloud, floating quietly in front of Hua Kejing.

Xiaole told Hua Kejing that most comets are very dirty snowballs.

This one can be clean and white, and it is so transparent that it is because the water content is too high.

Shout...... Shout......

In a silent environment, two ropes are launched from the thrusters and then firmly into the comet's ice.

After getting Xiaole's confirmation, Hua Kejing slowly unbuckled the buckle on the seat, connected a thin and long safety rope to the propeller, and then raised his hands and gently grabbed the giant ice cube in front of him.

"Little music."

"I'm here."

"It's so quiet."

"Are you scared?"

"No, actually...... It's an indescribable feeling. ”

Although Hua Kejing couldn't feel the cold temperature of the comet at more than minus 200 degrees Celsius through his gloves, there was clearly a strange and strange aura that penetrated into the spacesuit along his fingertips.

This is certainly a delusion!

But in this situation, Hua Kejing's heart must be difficult to calm down.

He suddenly thought of an old story from the age of the earth - what is the experience of spending 10 billion to probe a comet, and is it worth it?

In 2004, the European Space Agency's Rosetta probe flew into space with the Philae robotic lander, starting a long journey of 6.4 billion kilometers around the sun five times.

In 2014, after 10 years of extremely complicated space flight, [Philae] finally reached its destination, Comet 67P.

This is the first time that a robotic lander developed by humans has landed on the surface of a comet traveling at high speed.

From the plan proposed in 1993, to the launch of [Rosetta] and [Philae] in 2004 to start the journey of chasing stars, and then to the successful landing of Comet 67P in 2014.

This robotic space probe project cost tens of billions of dollars, with the participation of more than 2,000 top scientists from all over the world, and it took 21 years to catch up with an inconspicuous comet!

Is it worth it?

Why did humanity go to such great lengths to explore an inconspicuous comet?

At least the European Space Agency scientists thought it was definitely worth it, and they thought the comet landing was a big step in the history of human civilization.

From infrastructure to aerospace, Hua Kejing has also had a deep experience along the way.

It is countless scientists who make bold assumptions, seek scientific verification, pursue unknown answers in the universe, and look forward to human beings going deeper into the dark universe.

Human curiosity, adventurous genes, and courageous spirit of exploration are one of the cornerstones that support the continuous progress of human society, which is always worthy of every human being's pride.

Even the Rosetta probe and the robotic lander Philae are just as proud.

"Hello, Earth! Can you hear me? ”

This is the last message sent to Earth by the Philae lander.

After completing her mission, her battery ran out, and she slept forever in a dark corner of Comet 67P.

And Rosetta's final mission is to crash into the comet and collect the last information about the comet for mankind in a self-destructive way.

……

Today, however, human civilization has all but died out.

Thinking of this, an old scar was suddenly revealed, and Hua Kejing was sad!

"Right now, there is a comet in front of you, you have made the history of human civilization, and you should be proud of it......"

Xiaole's voice sounded faintly, because she felt the ups and downs of Hua Kejing's mood.

A rational artificial intelligence, a lonely human, and a piece of icy ice.

In this dark cosmic deep space, an unusual story is connected.

"Yes, I have made the history of human civilization, but I only have five hours left to make history."

Hua Kejing remembered the plan of this operation, so he took the streamlined detection instruments and tools, controlled the gas injection device on the spacesuit, and began to slowly fly around the surface of this equally lonely comet to investigate.

In appearance, she is not a regular spherical shape, in fact more like a giant winter melon.

The longest point is 1.45 kilometers, and the narrowest point is less than 600 meters long.

The whole body is snow-white, translucent, and has extremely high light transmittance.

"Sure enough......"

Hua Kejing muttered to himself while surveying.

He sometimes floats on the surface of the comet, sometimes clinging to a bulge of the comet.

To say that the Comet 67P registered by [Rosetta] and [Philae], its main components are ammonia, methane, hydrogen sulfide, hydrogen cyanide and formaldehyde.

From this, scientists concluded that the comet's scent smelled like a combination of rotten eggs, horse urine, alcohol, and bitter almonds.

But the comet in front of Hua Kejing is very different, her moisture content is as high as 95%, which is simply a complete piece of water ice.

The remaining 5% of the material is not on the surface, but is buried deep in the core of the ice.

Looking at this scene, Hua Kejing thought to himself, no wonder scientists often compare comets to flying cosmic refrigerators.

In the refrigerator of the comet at more than minus 200 degrees Celsius, the original materials needed for scientific research are often preserved.

It can be said that the evolution of celestial bodies, the origin of life, and the structure of matter, the three fundamental issues in natural science, are all very exciting in comet research projects.

Otherwise, why would the comet, commonly known as the "broom star" by the Chinese people, arouse such strong interest and expectation from the scientific community, so that it is both impact and sampling?

Hua Kejing: "Do we have what it takes to blow the comet apart?" ”

Xiaole: "There is almost no hope, this giant ice is very hard, even if it can blast the surface, it is still more than 500 meters away from the shallowest point of the core material. ”

Hua Kejing: "Are we still not well prepared?" ”

Xiaole: "No, the Forsaken didn't have any plans to detect other small celestial bodies in the first place, so we don't have this capability right now. ”

Hua Kejing: "Can you build an arithmetic model to help me find the best blasting point?" ”

Xiaole: "Have you forgotten, the future is the only one, and the outcome of some things cannot be changed, so there is no best option in the relevant calculation model, even if you repeat it hundreds of millions of times, you still can't blow up this piece of ice, and this calculation model does not hold up from the beginning." ”

Hua Kejing: "I understand, I'm just unwilling." So can you detect material in the core of a comet? ”

Xiaole: "Of course. ”

Hua Kejing: "Send me the detection results." ”

Xiaole: "Okay. ”

As a result, a series of messages quickly appeared in Hua Kejing's mind.

A little glance at it, he was immediately shocked.

I never expected it to be such a regular rock!!

Soon, Xiaole gave a very clear three-dimensional simulation pattern.

That's a tetrahedron surrounded by four regular triangles!

Hua Kejing suddenly had a lot of thoughts.

"Is this regular rock really just a natural formation?"

"Why is it inside a comet traveling at high speed?"

"Why is it so coincidentally a tetrahedron?"

"You know, the triangle is one of the most spiritual and mysterious patterns in the universe!"

……

I salute every friend who has been with me all the way, thank you for your support!