Those who face the wall, but are in the Nascent Soul stage.

Chapter 110 Vaporization
For humanity, digging ultra-deep wells at the bottom of Mercury is an extremely challenging task.

Mercury experiences extreme temperature variations between day and night, with daytime temperatures reaching over 400 degrees Celsius and nighttime temperatures plummeting to below -100 degrees Celsius. Under such extreme temperature conditions, excavation equipment and materials must be resistant to both high and low temperatures to prevent damage or degradation due to thermal expansion and contraction.

In the task of excavating ultra-deep wells, the temperature difference between day and night is only one of the difficulties. Mercury's low gravity environment (0.38G) means that the excavation equipment must be secured with special devices.

In terms of geological conditions, humans know nothing about Mercury's geological structure. This gamble-like excavation will pose a great challenge to the performance of the excavation facilities. In addition, humans are not accustomed to carrying out heavy operations on the vacuum surface, and the communication delay between the earth and water is also a troublesome problem.

The technical committee conducted a simple calculation on Radiaz's plan, concluding that even the most optimistic estimate would be three years of effort to dig an ultra-deep well on Mercury.

Fortunately, humanity has prisons.

The sweltering heat wave that hit him made Luo Qing frown. Although he had traveled through coal seams before, being in such a prolonged environment of 400 degrees Celsius and vacuum still made him feel very uncomfortable.

His spiritual energy surged slightly, and a light blue shield rose around him, keeping the high temperature out.

The Kunyue Chenxiao Sword was plunged into the ground, and spiritual power was continuously poured into it. The earth-brown sword light instantly intensified, and then the sword began to emit sword light. Every flash of the sword brought a silent rumble to the ground.

Finally, the surface of Mercury slowly cracked open, revealing bottomless man-made trenches.

However, it would take some effort to transform this deep ravine into an ultra-deep well, so Luo Qing charged into the ground with his sword.

Digging this hole took more time than Luo Qing had imagined.

Because the geological structure of the selected area was not particularly stable, the ultra-deep well collapsed several times, and Luo Qing was buried alive several times, so he had to choose a new location.

On the other hand, Mercury is much harder than Luo Qing imagined. Unlike Earth, which has a thin outer shell and a large inner core, Mercury is almost a solid rock.

When the Kunyue Chenxiao Sword pierced the rock layer for the last time, the entire planet Mercury seemed to tremble as if wailing.

Luo Qing unearthed an ultra-deep well with a depth of up to 30,000 meters. Beneath his feet lay a bottomless, dark abyss.

The ultra-deep well, hundreds of meters in diameter and 30,000 meters long, was breathing in the gas gushing from the ground. To Luo Qing's surprise, the surface of Mercury was cold and contained extremely small amounts of water. On the abyss-like cave walls, the ice crystals that had condensed were melting in the sunlight and disappeared without a trace in an instant.

After working for half a day, Luo Qing tossed the sword back into the quantum world, wiped non-existent sweat from his forehead, and muttered a curse under his breath:
"Damn it, Diaz, your plan had better work, or I'm going to throw you into this mess."

After doing all this, Luo Qing carried the "Capital" hydrogen bomb to the bottom of the ultra-deep well. The bottom was still cold. Looking up, he could see a tiny glimmer of light, like a star in the endless darkness.

There's nothing more he needs to do. The Wan Nian Yan Di spaceship is still on its way. Without this spaceship to extract data, the "capital" hydrogen bomb would be a waste of time.

It is not a supercomputer and cannot calculate and store the various data that Radiaz needs after the explosion of a stellar hydrogen bomb.

Standing on the bottom of the well, which had been firmly planted by the Kunyue Chenxiao Sword, Luo Qing couldn't help but drift into thought.

"What is Mercury's core like? Is it really just a solid rock?"

As his spiritual sense permeated the entire planet, Luo Qing vaguely sensed that this planet, the closest to the sun, did not seem to be entirely solid.

He hesitated for a moment, then, under Zhizi's gaze, he transformed into a streak of light and plunged into the ground.

Zhizi followed closely without hesitation.

Mercury's average radius is approximately 2440 kilometers. Its equatorial radius is 2439.7 kilometers. As the smallest planet in the solar system, Mercury's radius is 38.3% of Earth's radius, which is not small.

Therefore, it is not so easy for Luo Qing to escape into the core of Mercury.

Luo Qing's speed in solid rock was far less than his speed in a vacuum, and he only had a slight understanding of earth escape from the Five Elements Escape Technique. Even so, Luo Qing's supreme Nascent Soul stage cultivation level still allowed him to maintain a relatively high speed.

About ten minutes later, Luo Qing had traveled 2200 kilometers using earth-遁 (earth-遁 is a type of magic or teleportation technique).

Luo Qing penetrated the Earth's crust, mantle, and core.

"It really is a big rock!" Luo Qing's divine sense briefly sensed the composition of the Earth's core and quickly analyzed the answer: Mercury's core is mainly composed of metals such as iron and nickel. The outer core is subjected to relatively less pressure, resulting in slight softening and faint signs of flow, but it still remains solid. This may be the source of Mercury's weak magnetic field.

A planet that has completely cooled and solidified will not have a magnetic field.

Unlike the softened outer core, Mercury's inner core is completely solid. After Luo Qing penetrated this high-density, high-temperature inner core, he arrived in a vacuum.

If it weren't for his divine sense constantly covering the planet, Luo Qing would have almost thought he had passed through Mercury and arrived at another part of the Earth's surface.

But this completely dark world, where there is almost no photon, still proves the truth: this is not the starry sky.

The core of Mercury contains a vacuum cavitation bubble approximately 100 km in diameter!
Zhizi was clearly also very interested in the 100km-diameter 'cavitation' inside Mercury. It moved away from Luo Qing, flew around in the cavitation for a while, collected enough data, and then returned to Luo Qing's side, which was 10,000 meters away.

A personal spirit pet is one of them.

Because the cavitation bubble is located at the very center of Mercury's core, there is almost no gravity there, and Luo Qing can float effortlessly at the center point.

However, if he deviates even slightly, Luo Qing can feel himself shifting extremely slowly, and the speed of the shift increases with positive acceleration. If he doesn't move at all, he will probably crash into the cave wall on one side in about two months.

The farther away from the center, the stronger the gravitational force caused by the accumulation of mass; the closer to the center, the closer to a state of gravitational equilibrium.

This counterintuitive distribution of gravity is a very novel experience.

"It's boring."

Luo Qing pursed her lips.

There was nothing inside; it was pitch black, like a super prison that drives you crazy.

"Zhizi, is the phenomenon of a vacuum inside a planet common in the universe?"

Luo Qing's voice acted directly on the cave wall, echoing continuously in the air bubbles.

Zhizi typed out a line of text from afar:

We're sorry, but we don't know either. Using the Three-Body System and our solar system as examples, a vacuum Earth's core is an extremely rare phenomenon. The known Earth's cores of planets in our solar system, except for Mercury, are all liquid.

"Strange, haven't you explored more planets?"

The universe is very sparse.

Luo Qing understood. The universe was vast. Apart from the solar system and the Trisolaran system, these two "close neighbors" were all located more than ten light-years away. Naturally, there were no more planets to explore.

"I thought life could emerge from cavitation in the Earth's core," Luo Qing said.

This is almost impossible; apart from the constant temperature, there are virtually no conditions available here for the evolution of complex organic molecules.

"Oh, so the Trisolaran civilization also evolved from organic macromolecules?"

【Yes】

"It seems that life has a tendency to converge," Luo Qing remarked.

In the air bubble, Luo Qing played on the ball wall catapult gravity trampoline for a while, bouncing from one end of the air cannon to the other. After getting tired of it, he felt very bored.

"Tomoko, there's nothing to see here, let's go outside."

【OK】

(End of this chapter)