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

More likely, it should be that when they wake up, they have been forced to arrive at a brand new star system.

Five years of waiting, little by little their original unshakable confidence.

Up to now, no one dares to pat his chest to guarantee that there will be traces of gravitons near the black hole!

When manpower is exhausted.

Even a fourth-level civilization can only feel helpless when faced with the most mysterious and powerful celestial body in the universe.

The entire human fleet can only pin their hopes on those few black hole detectors at present!

Just as everyone untied the electromagnetic adsorption device and was about to get up and leave, Zero's electronic synthesis sound sounded again.

"Professor, Academician Meng Lu has sent a message."

……

"professor."

Meng Lu looked at Lu Yongchang who came in a hurry, and greeted with a smile.

"Successful in deciphering?" Lu Yongchang nodded, without any polite words, straight to the point.

"Yes!"

Speaking of this, Meng Lu immediately became excited. She stretched out her hand and said, "Professor, let's take a look at that sapling first."

The news of the great success of the research briefly dispelled the melancholy on Lu Yongchang's brows. He smiled gently and followed Meng Lu's footsteps towards the biology laboratory.

As he walked, his steps slowed down.

On his steady face, there was an extremely rare expression of astonishment.

"This……"

He stopped on the spot, staring blankly at the scene inside the transparent aluminum curtain wall.

A thick, deeply grained trunk.

"Professor, the saplings grow very fast, and the biological laboratory began to be remodeled and expanded in the second year." Meng Lu noticed Lu Yongchang stopped, and immediately explained with a smile, "You have been studying black hole data, don't you?" It is normal to know that the research progress here is normal.”

Lu Yongchang smiled wryly, but did not speak.

He took another step and walked towards the transparent aluminum curtain wall.

As he kept getting closer, the whole picture inside the curtain wall gradually fell into his eyes.

It is a spherical space with a diameter of 300 meters.

On the inner wall of the space, there are machines that produce radiation.

In the spherical space, under the illumination of the stellar spectrum lights, a giant tree with a height of [-] meters is growing vigorously.

The verdant leaves sway gently with the artificial breeze.

The angle of view slowly moves down.

The bottom area of ​​the spherical space is filled with soil from the lost star.

The thick, brown roots of the trees coiled around each other in the soil.

Because there is not much soil, part of the superficial tree roots are directly exposed to the soil. Under the illumination of the stellar spectrum lights, they slowly squirm, as if looking for the most comfortable position.

What really surprised Lu Yongchang was not these strange scenes.

He opened his mouth slightly, and looked at the scientific research robots freely moving around the tree roots in surprise: "This... won't these tree roots attack robots?"

Hearing Lu Yongchang's question, Meng Lu said meaningfully:

"It does attack at first."

"But as the detection and landing operations of the Lost Star become more frequent, it will not attack the robots."

Lu Yongchang couldn't help but froze in place.

For a moment, he felt that the CPU of his brain was down.

"Wait, wait, you say it again?"

"What does this have to do with the detection and landing operation of the Lost Star?"

Meng Lu smiled and pointed to the console beside her.

"Professor, this is related to our research results."

"Please come with me, Academician Mao and I will solve all your doubts for you."

Lu Yongchang turned his head suspiciously, and glanced at the scene in the biology laboratory.

This glance completely shocked him.

I saw a scientific research robot holding a small gamma ray gun in its hand, and beside it were countless thick tree roots that were slowly "dancing"!

This scene full of fantasy meaning once again made him stunned in place.

"professor!"

"You are finally here!"

The familiar voice from far to near brought Lu Yongchang back to his senses gradually.

But his eyes still moved uncontrollably towards those scientific research robots and tree roots.

"If you don't come again, we are all going to start the first time..."

"Ahem!" Meng Lu coughed lightly, interrupting Mao Zhengzhi's words.

The joyful expression on Mao Zhengzhi's face gradually disappeared. He first glanced at Meng Lu in surprise, and then at the shocked and perplexed expression on Lu Yongchang's face.

He suddenly realized, lowered his voice and asked Meng Lu, "You haven't told Professor Lu about that yet?"

Seeing Meng Lu nodding his head, a strange smile appeared on Mao Zhengzhi's face.

Chapter 622 Professor, times have changed

"Academician Mao..."

Lu Yongchang stared blankly at the picture inside the transparent aluminum curtain wall, and muttered to himself: "Have you tamed this giant tree?"

"Cough cough cough..."

Hearing this, Mao Zhengzhi couldn't catch his breath, and coughed suddenly: "Professor, why did you think of this?"

"Huh?" Lu Yongchang turned his head in confusion, "Otherwise?"

"Have you forgotten what happened when the expedition team landed on the Lost Star?"

Mao Zhengzhi waved his hands dumbfounded: "Professor, times have changed."

"Although it's only been five years, we have sent many probes to the Lost Star to perform various scientific research tasks in these five years."

"The current Lost Star may be slightly different from what you imagined..."

Lu Yongchang: "???"

Before he could speak, Mao Zhengzhi had already opened a holographic image.

What is played in the projection is the perspective of a detector.

With the video speeding up, it quickly entered the atmosphere of the Lost Star, and hovered at the height of the Lost Star, as if waiting for something.

Over time, the forest directly below the probe gradually adjusted the orientation of its leaves and canopy.

Eventually, a hole in the lush forest opened up to the ground.

The opening is not big, but enough for the detector to pass through.

"This..." Lu Yongchang's pupils dilated slightly, and he looked at the projected image in shock, "What happened in the past five years?!"

"Professor, calm down and continue watching." Mao Zhengzhi chuckled and reminded in a low voice.

It can be easily seen from the transformation of the projection screen that the detector is slowly falling.

It smoothly passed through the small opening made of leaves and tree crowns, and fell towards the ground.

On the ground, a small circular area appeared.

It's like a tarmac in the age of the earth.

Around this circular "airport", thick tree roots are coiled around each other, forming a "fence" several meters high.

To Lu Yongchang's surprise, these tree roots did not attack the landing probe, and even retreated a little bit to avoid the high-temperature particle stream ejected from the engine port.

Under Lu Yongchang's watchful eye, the probe successfully landed on the "stop".

The hatch opened slowly, and scientific research robots came out in neat formations, holding small gamma ray guns in their hands.

They raised their hands in unison and aimed their small gamma ray guns at the surrounding tree root fence.

start up.

Under the irradiation of gamma rays, these tree roots twist their bodies happily.

Looking at the picture in front of him, Lu Yongchang looked like he had seen a ghost.

Who the hell knew how he could see joy in those thick roots!

He turned his head and glanced at Mao Zhengzhi, seeing that he didn't intend to explain, so he could only hold back his temper and continue to watch.

Time passed by minute by minute.

As the scientific research robot turned off the gamma ray gun, the tree roots that made up the fence slowly spread out and retracted into the ground again.

Before retracting into the ground, they even actively cut off a short section of tree roots and threw them in front of the scientific research robot!

This scene directly caught Lu Yongchang's eyeballs.

He looked at Mao Zhengzhi beside him in horror, his lips moved slightly, as if he wanted to ask him how he did it.

Mao Zhengzhi shrugged, but still did not speak.

The holographic projection continues to play.

As soon as the tree roots dispersed, the radiation imaging detector issued a piercing siren.

The giant worms left behind were like sharks that smelled fishy, ​​and rushed towards the source of gamma radiation from all directions.

Lu Yongchang's face changed slightly.

These abandoned giant worms without advanced intelligence are not as easy to talk to as giant trees!

Just when he was secretly worried in his heart, the picture in the projection shocked him again!

I saw a few sections of tree roots coming out of the ground and waving violently in the air a few times.

In the atmosphere, the screams of the giant insects left behind immediately echoed.

Through the radiation imaging detector, Lu Yongchang could clearly see that under the waving of tree roots, those left giant worms that were close to the scientific research robot were easily knocked into the air.

The rest of the giant worms, under the threat of the giant tree, retreated one after another, giving up enough space for the scientific research robot.

……

Video is over.

Lu Yongchang took a deep breath and tried to maintain his usual calm: "What's going on?"

"Have you completed the first communication with the giant tree on the Lost Star?"

"Not at all." Mao Zhengzhi shrugged, "All the actions were done spontaneously by the giant tree."

"What we did was to send detectors and scientific research robots."

"What's the matter with the small gamma ray gun?" Lu Yongchang asked in a deep voice.

"We found that whether it is a giant tree or a giant worm, they all showed great interest in the gamma rays released by the antimatter engine, so..." Mao Zhengzhi pointed in the direction of the biology laboratory, "You can put the gamma rays The ray gun is understood as a feeding machine."

"Like feeding kittens and puppies?"

Lu Yongchang said with an unbelievable expression: "Just relying on these, you have completed the communication with the giant tree on the Lost Star?"

Hearing this, Mao Zhengzhi blushed.

He coughed twice in embarrassment, and said with a smile: "Of course it's more than that..."

"What else?"

"Uh... two thousand high-yield hydrogen bombs, carried by two thousand ship-borne drones." Mao Zhengzhi said weakly, "waiting on top of that [-]-meter giant tree."