Yu Chimu's eyes looked at the undersea campus outside the window, and his thoughts drifted into the distance.

Although the environment of the entire core planet is very harsh, the ocean is black and gooey, and the sky is covered with a gray dust curtain.

Due to the environment, ordinary humans have long since moved away from the core planet.

The core planets are only the Royal Star High School and the Interstellar Government Office Building.

The headquarters of the submarine school is very beautiful, the students are simple and lovely, and the whole school has been running well under his management.

The interstellar government is also very satisfied with his work.

However, these honors and halos are nothing.

Now, he couldn't even guess what kind of catastrophe was about to face the entire planet, or even the entire interstellar planet.

It's all because of his conceit, his self-righteousness.

"I have to say, it's all my fault!" Yu Chimu's eyes glistened with tears.

Professor Shangguan sighed and said, "Wei Chi, it's not your fault alone. Professor Shangguan stretched out his hand and quickly put it away, the light in his eyes was full of remorse and sadness, "If I had insisted on it at that time, maybe everything would not have happened today." ”

"What are you talking about?" Nangong Tian rubbed his eyes, "I can't open my eyes, I'm really sleepy." ”

It has been an hour since Luo Chuan splashed him with cold water in the middle of the night, and he has been exhausted.

In this short hour, the moon turned into a black hole, and as Luo Chuan wondered, according to the theory of black holes, the moon is nothing more than a satellite of the earth, and it is impossible to become a black hole.

The black hole formed by the moon quickly swallowed the Earth.

How can it be? How could all of this happen all of a sudden?

"Principal Wei Chi, Professor Shangguan" Luo Chuan said, "what are you talking about?" ”

"How stupid, you." Nangong Tian glared at Luo Chuan, "Fools can hear it", and then, Nangong Tian walked to Luo Chuan's side, leaned on Luo Chuan's ear and said, "The appearance of the black hole may have something to do with our principal." ”

After listening to this, Luo Chuan looked at Yu Chimu in the air screen.

Yu Chimu's expression was gloomy, thoughtful, and the stack of kelp paper in his hand was trembling. After a long time, Yu Chimu said, "Last month, that is, on your first day of school, I gave you an opening speech. Remember? ”

Luo Chuan and Nangong Tian nodded in astonishment.

The two of them couldn't help but have the picture of that day in their minds, the sticky black ocean illusion, the foul smell, which made people remember it vividly.

The headmaster said very clearly that the reason why the core planet has no land, only the sky and the sea is because of the interstellar war that has lasted for a hundred years.

On that day, the principal was heroic and passionate, and he never mentioned the moon, the earth, or black holes!

"When I was giving you a speech," Yu Chimu raised his hand, the stack of kelp paper in his hand seemed to have a thousand heavy burdens, "Interstellar sent this document, about your Shangguan professor's research project. ”

Luo Chuan and Nangong Tian looked at Professor Shangguan beside them in unison.

"No, it won't." Nangong Tian said in surprise, "Professor Shangguan, do you have a research project in your hands?" How I don't know. ”

Nangong Tian rubbed Luo Chuan next to him with his shoulder, and Luo Chuan said, "I don't know." ”

He really didn't know.

Since he entered Yuxing High School, he has heard that Professor Shangguan is an old man with a strange temper.

From the time he entered the School of History, he saw Professor Shangguan who made him a male nanny all day long, the professor who urged him to study hard all day long, and the one who often reminded him not to come into contact with the Star Master.

Does he have a research project?

Never heard of it.

He was the only student of Professor Shangguan, but he never knew what the professor was doing every day.

Luo Chuan clenched his fists, "It turns out that I don't know anything. ”

"You certainly don't know." Professor Shangguan said, "I have been observing the state of the stars. ”

"A month ago, when you started school," Professor Shangguan continued, "I found something, a strange thing. ”

An image appeared in the huge air screen, a crystal.

Luo Chuan felt a little strange, this was just an ordinary crystal, which looked no more than the size of a palm.

Could this crystal be related to the Moon or Earth?

"The crystal you're seeing now is what caused the moon to become a black hole." Professor Shangguan said, pointing to the center of the air screen.

"That's right." Yu Chimu's eyes lit up and said, "On the day you started school, Professor Shangguan discovered this crystal, and he wrote a report and handed it to me, I didn't care. ”

"Then, I ran to the interstellar government non-stop and gave them the report, and they handed the report to Principal Wei Chi for review." Professor Shangguan said heavily.

"I saw that report twice in one day," Wei Chimu said sadly, "but I turned a blind eye. Who knows, what your professors feared has happened. ”

"Professor, what exactly is that crystal?" Luo Chuan asked, "Just such a crystal can turn the moon into a black hole?" ”

"This crystal looks ordinary," Professor Shangguan said, "and it looks similar to all the crystals or crystals we've ever seen, and even I thought it was just a thick piece of glass on the moon." ”

"And after careful observation and research, I found that its texture is obviously artificially made." Professor Shangguan pointed to the image of the crystal and said, "These patterns are chaotic and orderly, while those real ordinary crystal patterns are fixed. ”

"It's infinitely massive." Professor Shangguan continued, "I can't measure its quality at all. ”

After discovering the crystal, he tried many methods to estimate the mass of the object, but none of them could estimate the specific mass of the object.

After many calculations, he came to the conclusion that the mass of this crystal is infinite.

"Its mass is infinite." Nangong Tian said, "A crystal with infinite mass causes the mass of the moon to be infinite. ”

"Even though it's not a star, its infinite mass allows it to absorb all the light around it in a short period of time." Professor Shangguan continued.

Luo Chuan was taken aback.

He is not particularly good at astrophysics, but with the "Astrophysics" he usually reads, he still understands the words of the professor and Nangong Tian.

When light can't escape, it becomes ...... Black hole.

The moon did become a black hole, and because that crystal with infinite mass became a black hole.

"Usually the moon is good, which means that it didn't have that crystal before." Luo Chuan said.

The moon has been safe and sound under the supervision of the stars.

How did the crystals get into the interior of the Moon?

Is it naturally occurring or man-made?

Thinking of this, Luo Chuan gasped a few times.