It's reasonable for me to have a two-way foil for a second-level civilization, right?

A single tree becomes a forest!

Lu Yongchang's breathing was a little short, and he suddenly realized that the extremely green arctic region that he saw in the universe at that time was probably caused by this terrifying giant tree!

"This……"

Lu Yongchang swallowed slightly, and asked in a low voice, "How big is this tree?"

"According to the data sent back by the detector, the highest point is 12037 meters."

Even though everyone was mentally prepared, when they heard this number, there was still a gasp in the laboratory!

"Damn..." *N

Lu Yongchang is no exception.

His pupils dilated slightly, and he looked at the holographic image in front of him with an unbelievable look.

12000-meter tall trees...

I originally thought that the forests with an average height of 100 meters were exaggerated enough, but I didn't expect there to be a big boss with a height of 12000 meters!

He couldn't help but burst out a swear word in his heart: This tnd, a tree is even bigger than the [Earth]!

"This... how long is it?!"

Mao Zhengzhi's face flushed slightly, and he complained loudly from the side: "No matter how high the oxygen concentration is, it's impossible for such a monster to appear!"

……

After a brief shock, Lu Yongchang took a deep breath, calmed down a little, and turned his attention to the data sent back by the detector.

"Ok?"

It doesn't matter if you don't look at it, you will find the problem at a glance.

"What about gamma rays and X-rays from black holes? Where does that radiation go?"

Lu Yongchang subconsciously turned his head to look at the data sent back by the other detectors.

There is no problem.

The atmosphere of the planet is full of all kinds of high-intensity radiation from black holes—except around giant trees.

Mao Zhengzhi also discovered this abnormal phenomenon.

His gaze stayed on the huge canopy of the giant tree, and he raised his hand thoughtfully to touch his chin.

"Professor, let these detectors look away from the area covered by the tree canopy." Mao Zhengzhi said softly.

Lu Yongchang's eyes showed a bit of excitement and confusion, and he waved his hand lightly to signal Ling.

With the help of the antimatter engine, the probe quickly left the canopy area of ​​the giant tree.

"A large dose of radiation has been detected."

Electronic synthesis sounded.

"Sure enough..." Lu Yongchang murmured excitedly.

"Professor, it is basically certain." Mao Zhengzhi said aloud with excitement and horror, "This giant tree can absorb gamma rays and X-rays and use them as energy for its own growth."

"Now, everything makes sense!"

"No wonder the position of this planet is so bad, there are still life on it!"

"Emotion, this black hole is surrounded by these trees' paradise!"

"Life is really amazing!" Mao Zhengzhi sighed repeatedly as he looked at the holographic projection in front of him intoxicated.

Unlike Mao Zhengzhi, the first thing Lu Yongchang thought of was the role these trees could play!

Absorbing large doses of radiation so efficiently...

These trees are simply excellent materials for building a starship's radiation protection layer!

The picture of that advanced civilization war is still circling in Lu Yongchang's mind.

He doesn't need to experience it personally, he can completely imagine the super large dose of high-energy radiation diffused in the war zone!

Therefore, the question of how to increase the radiation resistance of the starship has been circling in his mind.

Now, the plan has revealed its clues!

He gave an order to Zero excitedly: "Zero!"

"Login!"

"Log in now!"

Chapter 592 The Strange Planet

Order issued.

Zero meticulously carried out the orders from Lu Yongchang.

For the sake of safety, the probes scattered around the Lost Star drove the antimatter engines to concentrate on several preset landing sites.

In the sky of the Lost Star, which had been quiet for an unknown number of years, countless dazzling rainbows appeared at this moment!

The light from the black hole's accretion disk reflects the chaotic but orderly rainbow in the sky.

The high-energy gamma rays produced when the antimatter engine was working were also like tides, pouring into every corner of the Lost Star wave after wave.

Under the impact of these high-energy gamma rays, some extremely small and unknown changes appeared on this forest-covered planet.

Even the probe equipped with countless advanced observation equipment did not notice this small change during the high-speed flight.

As time passed, the originally disorganized leaves slowly adjusted their orientation—they aimed the front of the leaves at the long rainbows in the sky.

It's as if the trees are staring at the trails left by the probes!

This weird picture didn't last for too long. As the long rainbow in the sky faded away, the leaves of these trees returned to their original orientation.

……

Lost Star equatorial region.

Above the A1 landing site, at an altitude of [-] meters.

Dozens of detectors adjusted their attitudes, and then reduced the operating power of the antimatter engines.

As the light from the vent gradually dimmed, the heights of these dozens of detectors also gradually decreased.

The land area of ​​the Lost Star is covered by dense forests, which brings some difficulties to the landing of the probe.

At the beginning, Lu Yongchang planned to adopt the method of "violent landing", that is, to use laser weapons and high-power bombs to clear a safe landing area.

But this proposal was strongly opposed by Mao Zhengzhi.

As a biology academician, he couldn't bear to see such a magical ecosystem destroyed.

Of course, the most important reason is that humans do not know the growth cycle and cultivation methods of these trees.

If its growth cycle is too long, or if cultivation is too difficult, the forest on the Lost Star will basically become a non-renewable resource.

Even though the number of trees on this planet is extremely large, once it is determined that they have good radiation resistance, the needs of the human fleet are not vegetarian.

Therefore, in order to preserve these precious resources as much as possible, the probe abandoned the original landing plan, but chose to land on the Lost Star from the gap between the canopies.

Observing from a high altitude, the forest on the surface of the Lost Star is extremely lush and dense.

But in front of you, there are still many gaps between the crowns of each big tree, enough to accommodate small detectors to enter.

In the [Earth] laboratory, everyone was curiously looking at the picture sent back by the probe, trying to witness the true face of this lost star in the first place!

As for the data sent back by the black hole detector?

Let the probe fly a little longer.

It still takes a lot of time for them to cross the huge accretion disk and reach the area where the degree of space-time distortion is high enough.

The detector gradually fell, and the scenery inside the forest also fell into everyone's eyes.

"what?"

Mao Zhengzhi, who was originally full of excitement, frowned at this moment, and let out a small cry of surprise.

"It doesn't feel right..."

Suddenly, as if he thought of something, he stretched out his hand and dragged the 3D modeling aside, and marked several areas on it: "Zero, help me calculate the distance between these tree crowns."

For Zero, this task is extremely simple.

As soon as the voice fell, the detailed data was presented in front of Mao Zhengzhi.

Looking at the numbers on the holographic model, the excitement remaining in his eyes dissipated instantly!

"professor!"

He turned his head and looked at Lu Yongchang beside him: "There is something wrong with this forest!"

"No, I'm afraid it's not this forest!"

"It's the whole planet!"

……

"You mean..." Lu Yongchang looked thoughtfully at the constantly beating statistics in front of him, "Maybe this forest was artificially planted?"

Looking at the gradually increasing data samples, he changed his words: "No, the forests on this entire planet are artificially planted?"

"...Yes." Mao Zhengzhi nodded with some hesitation, "Sounds a little unbelievable."

"These trees vary in size and canopy size."

"Normally, it should be easy to see that the crowns overlap each other."

"But so far, the distance between all the tree crowns is basically the same." Mao Zhengzhi's eyes revealed a hint of fear, "Moreover, on this planet, except for the Arctic region, the vegetation density of all forests is basically the same. "

"Another point……"

"Professor, there is only this kind of tree on this planet!"

"Without human intervention, how could such a situation occur!"

Lu Yongchang's eyes were a little more dignified than before.

He was silent for a while, without drawing any conclusions, but said in a deep voice, "Continue to land."

"No matter what, only by landing on this planet can we find out the truth behind it."

"If it is the handwriting of other advanced civilizations..."

Lu Yongchang did not continue.

But everyone at the scene understood the meaning of his words, and everyone's expressions dimmed a bit.

Just escaped from the tiger's mouth, turned around and entered the wolf's den again?

During the time everyone was discussing, the probe successfully passed through the gap between the canopies, and crossed the final distance, "stepping" on the surface of the lost star.

It stands to reason that with the surface gravity of nearly 1.5g, coupled with these [-]-meter-high behemoths, the surface soil should be quite strong!

But the real situation is completely opposite to Lu Yongchang's imagination!

The soil is very soft.

According to the data sent back by the sensors, the softness of these soils far exceeded Lu Yongchang's estimation.

It is even softer than the soil on earth.

Like... someone has been loosening the soil for it.

who can that be?

Lu Yongchang shuddered slightly, shook his head to shake off the thoughts in his mind, and then turned his attention to the holographic image in front of him.

Light and shadow are sparse.

The light from the accretion disk of the black hole shines directly on the soft reddish-brown soil through the gaps between the leaves and the canopy, forming spots of light of various sizes.

On the reddish-brown soil, there are a few fallen leaves.

Although the number of leaves is small, the area is very large.

Two or three adult human males can lie down on one leaf!

At the bottom of the trunk, there are some fungal organisms that look like mushrooms.