In the vast universe, a black hole silently orbits.

A huge, bright accretion disk slowly rotates around it, presenting an unusual beauty.

Further away, a tiny fleet was also orbiting it in a circular motion.

Unfortunately, whether on Earth or in the universe, beautiful things are generally dangerous.

It is no exception.

Compared to the black hole in the central region of the Milky Way, it is just a small black hole.

But beneath its beautiful exterior, extreme danger still lurks.

Leaving aside the various dangerous radiations it releases, just consider its incredibly powerful gravity.

Once you get too close to it, you will be captured by its powerful gravity, and even a human fleet with antimatter engines cannot easily escape.

As for the consequences...

Naturally, it slowly falls into the event horizon of this black hole, the region from which even light cannot escape, and eventually falls into the center of the black hole—the singularity.

...

【Earth】

Standing by the porthole, Lü Yongchang frowned slightly.

After the initial amazement, he quickly began to think.

The images of black holes observed with the naked eye have confirmed many of humanity's previous conjectures about black holes.

But a lingering doubt still drifted through his mind.

Normally, these small black holes would not have such a large accretion disk.

In fact, most of the time, it does not have an accretion disk structure.

This is precisely why black holes are difficult to observe.

On the one hand, black holes absorb starlight from afar; on the other hand, they also absorb starlight due to the gravitational lensing effect caused by their immense gravity.

Even light rays seen from behind a black hole can "bypass" the black hole and travel to the observation source under the influence of gravity when observed from a distance.

Simply put, we can observe starlight from the side and even the back of a black hole.

Therefore, small black holes without accretion disks are difficult to detect using conventional observation methods.

Why would such a small black hole produce such a huge accretion disk?

A conjecture came to Lü Yongchang's mind.

Could it be... that it just captured a star?

This massive accretion disk is the "corpse" of that star—it was completely torn apart by the black hole's powerful gravity.

A black hole devouring a star—this is a once-in-a-lifetime opportunity to observe!

Perhaps they can find that deeply hidden constant by observing this process!

Thinking of this, Lü Yongchang felt his heart, which had just calmed down a little, start pounding violently again!

"Let's go to Lab One."

Lu Yongchang said to Fang Xu with some excitement, "This is a great opportunity for observation!"

Fang Xu was stunned for a moment, but soon he understood the reason behind it.

A hint of excitement flashed in his eyes. Without saying a word, he followed Lü Yongchang and hurried towards the laboratory.

...

Shipborne Laboratory No. 1

A miniature holographic model of a black hole floats silently in the center of the laboratory.

"Zero, dispatch all detectors to build a comprehensive observation network around the black hole."

Upon entering the laboratory, Lü Yongchang's expression became increasingly serious.

He raised his hand, gently dragged the holographic model, and clicked on several areas: "Pay close attention to these areas."

Fang Xu glanced at it, a look of realization dawning on his eyes.

According to current exploration data, this black hole, in addition to the Hawking radiation unique to black holes, also emits a large amount of X-rays, gamma rays, and visible light radiation.

Apart from Hawking radiation, the rest of the radiation is mainly found in the accretion disk region of this black hole.

The cause is also easy to explain.

first.

Near a black hole, stars or planets that are attracted to it will be completely torn apart by the powerful gravity until they become particles in an atomic or subatomic state.

These particles will rotate at high speed around the black hole and form a disk-shaped structure.

This is the origin of the black hole accretion disk.

Secondly.

Due to the varying speeds of the materials within the accretion disk, collisions and friction are inevitable.

This process generates a large amount of light and heat.

The extremely high temperature causes the particles to transform into an excited state, thereby releasing a large amount of radiation.

This is why the accretion disk of a black hole is so dazzling.

The areas highlighted by Lü Yongchang are basically the parts of the accretion disk with stronger radiation.

"Oh, right."

Lu Yongchang's voice rang out again: "Modify some detectors, equip them with sufficient radiation-proof shells, and then send them into the accretion disk area for in-depth exploration."

"etc."

He Bilin's voice rang out from the door of Laboratory No. 1.

"Professor, have you decided what communication method these detectors will use?"

He Bilin's question startled Lü Yongchang.

He instinctively replied, "Of course, it's a quantum communication device."

"Professor, have you considered the [Event Form] theory?" He Bilin asked with utmost seriousness.

The so-called "event form" theory, simply put, states that the evolution of quantum states in singular spacetime and flat spacetime is different, and that entangled quantum pairs will be probabilistically lost under the influence of gravity.

Upon hearing this, Lü Yongchang immediately frowned.

"[Event Form] Theory..."

"We have conducted many experiments in the past, and we can basically confirm that quantum communication at a distance is not affected by gravity."

“Professor, previous experiments were all conducted around planets or stars,” He Bilin reminded him softly, “but this is a black hole.”

"We cannot be certain whether the spacetime distortion caused by black holes will affect quantum long-distance communication."

Lu Yongchang's expression gradually became serious.

He Bilin is right.

Compared to black holes, the spacetime distortions caused by stars and planets are really insignificant.

He tapped his knuckles lightly on the lab table in front of him, hesitated for a moment, and then said, "If that's the case, we may have to go back to primitive electromagnetic wave communication."

"This will further reduce the efficiency of information transmission."

Lu Yongchang looked at the holographic projection with some helplessness: "Zero, add electromagnetic wave communication modules to those detectors."

"receive."

“There’s another problem,” He Bilin continued, “the flow of time around a black hole.”

"The closer the detector is to the black hole, the slower its time flows under the influence of gravity."

"Neither electromagnetic wave communication nor quantum long-distance communication can avoid this problem."

"The information transmitted by the detector in one second may take us decades or even centuries to receive in its entirety."

The helplessness in Lü Yongchang's eyes deepened.

"I've also considered this issue."

"Currently, we can only spend a lot of time to complete this observation experiment."