Earth Era

The planet Raqqa is floating quietly tens of billions of kilometers away from the fleet. It is like a lost world, full of endless mystery and darkness.

There are thick clouds on the planet Raqqa, which are even thicker than the clouds on Venus in the solar system. This resulted in the probes launched by General Emmerk being unable to obtain data on the planet's surface at all. In this case, sending robots to land on the planet is the most appropriate approach. If after robot exploration, it is determined that there is no danger on the Raqqa planet, it will not be too late to send humans to land at that time.

A robot formation was launched from a certain spacecraft, and then embarked on a vast dark journey. It will take more than ten days to sail to the planet Raqqa, and then reveal the truth hidden by the thick clouds to the people waiting here.

Xiao Yun and General Emerk saw the information transmitted back by these robots in the combat command hall. There is basically no visible light on the surface of the planet Raqqa, so these robots use infrared rays to take pictures. This causes the pictures people see to always show a weird tone, which looks like something that has been lost for a long time. Average old video footage with true colors.

This was the first time people in the fleet had seen the surface of the planet Raqqa, but to Xiao Yun, these things were not unusual. Because decades ago, Xiao Yun lived in this environment for a long time.

Whether it was the undulating mountains, the criss-crossing ravines, or the strong winds that could blow away boulders, these things were all familiar to Xiao Yun. There was just one thing... Although the mountains were still mountains, and although the ravines were still ravines, their appearance was somewhat different from what Xiao Yun had seen before.

Of course, the mountains stand high above the earth, but the mountains on the planet Raqqa don't look like that at the moment. If I had to describe it, it would be... they seemed to be piled up, not pierced out from under the earth. Xiao Yun tried hard to think of adjectives in his mind. After a long time, he suddenly remembered that these mountains were similar to the sand dunes in the desert on the earth.

The same goes for those ravines. They are no longer sharp, but have become very gentle, like small gullies blown out by the wind in the desert. And those lands... they are no longer one. When the robot pointed its lens at them at close range, Xiao Yun could even detect those granular structures.

General Emerk asked Xiao Yun: "Although I don't know much about the planet Raqqa, I roughly remember... Planet Raqqa seems to be a very moist planet with very rich landforms. It does not seem to be what it is now. This kind of look.”

Xiao Yun nodded silently: "It is indeed different from what I remember."

The robot exploration team slowly spread out under the control of its own program drive and the staff in the fleet, so the range they explored became larger. But no matter where they arrive, the picture they capture will always look like this. It seems that in just a few decades, the planet Raqqa has been completely swallowed by the desert.

There is desert everywhere, desert everywhere. There is nothing on Raqqa except desert.

At this moment, Xiao Yun suddenly remembered something. So Xiao Yun said: "General Emerk, I think we should analyze the elemental composition of those deserts now."

General Emerk nodded, and then gestured to the staff next to him. The staff quickly carried out the order of Head of State Emerk, and after a period of time, a table of elemental composition was presented in front of Xiao Yun.

Xiao Yun held the element composition table, his eyes full of shock and disbelief. Xiao Yun looked at the numbers and symbols carefully for a long time. As he looked, his body began to tremble slightly. It seemed that what he was holding was not a piece of paper, but something that could destroy the entire human race. Civilized things in general.

General Emerk also came over and looked at the piece of paper, but didn't understand what it meant. So General Emerk asked: "Xiao Yun, what did you see?"

Xiao Yun let out a long sigh and put the piece of paper on the table. At the same time, his whole body seemed to be drained of energy: "General... there is no need to look for it anymore. If my estimate is right, If so, at this moment, there are no enemies on the planet Raqqa, they are all gone."

"Gone? Where did they go?" General Emerk said in surprise. He picked up the elemental composition table and looked at it again, but still couldn't see anything.

Xiao Yun then said: "This elemental composition table describes the elemental composition within one meter of the surface of Raqqa. General, you see, the elements that make up these substances are only a few elements such as oxygen, silicon, iron, and calcium. So let me ask you... is it possible for a natural earth-like planet to have such a simple composition of surface elements?"

General Emerk didn't quite understand it at first, but when he heard what Xiao Yun said, he immediately reacted: "This is indeed very unusual. So, where did the disappearing elements go?"

"They are all gone." Xiao Yun murmured, "If I guessed correctly... those elements have been mined by the infinite replicating robots, and then made into new robots. They have used all the available elements on the planet Raqqa. All the elements are mined out, and when the planet is no longer valuable for mining... they will leave and go to other star systems to continue looking for sufficient resources."

At this moment, Head of State Emerk's face also turned livid.

That's the elements of an entire planet... Although the elements buried deep underground are unlikely to be mined by robots, even if it's just the surface of the planet, what is their total content? And if all these elements and resources were made into robots...how many could be made?

At this moment, a staff member hurriedly walked up to General Emerk and reported in a low voice: "General, after the latest detection, we have confirmed that the total mass of the planet Raqqa has dropped by ten percent compared to a hundred years ago. Three parts per billion.”

"Three parts per billion." Xiao Yun sighed. "The total mass of the planet Laqa is about 4.8 times ten to the power of 24 kilograms. Three parts per billion is 1.44 times ten. of 16 kilograms. If a robot has a mass of 3,000 kilograms, a total of three billionths of a mass can produce... 480 billion robots. Of course, there is no waste at all, and All the mass is used for them to copy themselves. Of course, this is not the case in reality. In the actual situation, we also need to calculate the mass loss of the Laqa planet itself and the mass consumed by decay energy, but even if the calculation is I can also confirm these things...the total number of robot replicas will not be less than two trillion units."

General Emerk turned around with a stern look, projecting his sharp bayonet-like eyes on the big screen in front of him. The screen was still playing pictures from the detection robots on the surface of Raqqa. Although those robots had traveled hundreds of kilometers, what they saw... was still a sky full of desert, without any trace of it. Variety.

"Do you know a kind of candy that children like to eat?" Xiao Yun said quietly, "I liked eating that kind of candy very much when I was a child. It is composed of a hard core and cream chocolate covered on the outside. The outer layer of cream is The chocolate is delicious, but the hard candy inside is not so good. So we eat the creamy chocolate outside and then throw away the hard candy inside."

"I don't like candy." General Emerk said coldly.

"But the robots like it." Xiao Yun also put his eyes on the big screen. While watching, he continued: "Planet Raqqa is the candy of the robots. Now, they have finished eating the cream chocolate. , only the hard candies inside were left, so... they threw away the planet Raqqa and left here to find new candies."

"Are you sure this is what the infinite replicating robot did?" General Emerk turned around and said to Xiao Yun.

Xiao Yun nodded: "I confirm this. Although we have no direct evidence until now, I would like to ask you, apart from infinite replicating robots, who else has this kind of ability to reproduce in just a few decades?" The ability to completely transform a planet within a human body? Are we humans? You have to know that even if we humans want to transform the planet Raqqa to this extent, we will need to invest at least tens of millions of humans and it will take nearly a hundred years to do it. And do we humans have such big moves? No. So, besides infinitely replicating robots, do you think there will be others?"

General Emerk nodded coldly, and then turned away again. Xiao Yun continued: "Now, I think I already know what is going on with the twinkling of the Laka star that we observed before. We previously speculated that it was due to the obstruction of some interstellar matter, but now it seems... What blocks Raqqa is not interstellar matter, but trillions of infinitely replicating robots... After they completely destroyed Raqqa and made it completely worthless for development, they swarmed in swarms. The team left the Raqqa galaxy and headed to other star systems..."

"Because there were so many of them, they blocked Laka for a month. Until they all left, Laka returned to normal..." (To be continued ~^~)