Half-immortal civilization

Time flies by, never caring about people's calls.In the blink of an eye, year after year just flowed by without leaving any traces.In a blink of an eye, the empire came to 107 years.
Ten years passed by.In the past ten years, the most exciting thing is the ultra-long-distance communication technology, which has finally made a breakthrough.Input a signal from one end, and the other end can receive the signal within an hour; the longest communication distance, that is, the theoretical distance is 100 light-years, and the current communication distance is 40 light-years—within 40 light-years, the communication time is only one hour Will suffice.That is, the energy consumption is a bit high, and it takes a lead physical battery of 10 million cubic meters to complete a signal connection-a call needs to consume [-] billion kWh of electricity!And each signal can only transmit ten seconds, no more than one megabyte of information.

Today, electricity is still the most common energy technology; as for other forms of energy such as magnetic energy, it is still only a small amount of application in cutting-edge fields.Because compared with electricity technology, these energy technologies are unpredictable and cannot be stored.

However, the civil society has not changed in ten years.The scientific and technological development of human society here in the solar system has reached a temporary peak. With the public sale of the 10-ton Gendan-5 engine, whether it is an empire or a republic, space technology has advanced by leaps and bounds.In ten years, interstellar travel between Venus, Earth, and Mars has become commonplace. Dozens of interstellar travel companies, large and small, provide humans with cheap interstellar travel services: 1000 yuan per 2500 kilometers!The service fee for each space trip is 30000 yuan.If calculated according to the current orbits of the Earth and Venus, the shortest distance is 2500 million kilometers; even if you add food, drink and other travel expenses, you can take a round trip for 3800 yuan! ——This is the idea of ​​a certain passenger!Waiter: The planet also needs to move.The shortest distance is 5800 million kilometers, but the actual flight distance of the spacecraft is [-] million kilometers; and the return distance is as high as [-] million kilometers.Speaking of this, the waiter looked helpless: We can't stop the planet from moving!
Customer: I don't believe in advertising anymore...

Waiter: It's not an advertising mistake, we've made it very clear.At this time, the distance between Venus and the Earth is the closest; however, the spacecraft has to catch up with the moving Earth during flight, and catch up with the moving Venus when returning, so the actual distance must be much greater.Besides, your price calculation is calculated according to your calculation method inside the planet, not according to the interstellar standard, of course there is a deviation.

With the development of technology, star tourism has become commonplace, and such things are constantly happening.Many people still haven't changed their minds - it's really too fast, too fast!People have not had time to adjust to the relationship between the relatively static ground and the eternally moving space.Many calculation units are still calculating according to the laws of the ground.Because today is counting.The return time of the Cetus signal - the specific time cannot be accurately estimated, after all, the starry sky is constantly moving, and there are too many mysteries in the starry sky. 12 light-years away.It is really normal for the signal transmission to be delayed by dozens of days.The more humans study the starry sky, the more they can feel the mystery of the starry sky.For example, under a high-power telescope, the stars in the starry sky do not exist continuously. Some stars will disappear out of thin air for a period of time, and then reappear after a period of time-this is because there is a black hole partition effect in the starry sky: it is possible that a certain planet and middle of the earth.There just happened to be a black hole.Then we can't see this star; or some nebulae that don't shine in the starry sky, etc.In fact, the mass of luminous objects in the universe is measured and calculated by modern science.Only 2~3% of the mass of matter in the entire universe!And the light that human eyes can see is only 4% of all light waves!so.The task of studying the universe is really a long way to go!
And at the beginning of this year, the war spaceship built by the empire was finally completed.This spaceship is a spaceship jointly built by more than a dozen large groups of the empire, and it is used for the expedition to Gliese, the planet of life 20 light-years away.For this goal, the empire's group companies have also gone crazy over the years!Under the supervision of the empire, he "attracted" 1000 golden core stage masters and a few ordinary practitioners in the virtual core stage with super high conditions; at the same time, he was also cultivating some practitioners.In addition, the price of each mecha is 3 million to 2000 million yuan, and 30000 military war mechas are purchased from the empire.These mechs range from ten-meter-sized monster mechs to 100-meter monsters.There are also 20 fighter jets of various types!

In addition, the empire was commissioned to train 50 real soldiers suitable for space warfare and [-] non-commissioned officers of all sizes.

For their own dreams, these group companies threw away 80% of the wealth accumulated in the past century!Crazy can no longer be described.And in order to save costs, the spacecraft was built using the technology of the Imperial Hope spacecraft—mature technology!
The empire's construction of spaceships is not simply a matter of copying, but building and researching at the same time, so it costs a lot of money and takes a long time!But these businessmen are not like this. They directly adopt the mature second-generation spaceship technology, so they don't need to invest a lot of money in research, and don't need to spend a lot of time on public relations - simply copy it.

This will directly reduce the cost of the spaceship by 40%, and the construction time will be directly reduced to ten years!
However, not all new technologies have not been adopted, and some low-cost new technologies are still needed; especially the energy protection layer technology of the Monster Group, ten years of research and development have initially achieved good results, and can already achieve the goal of defending against sniper rifles. bullet effect.

In addition, the war weapons in the spaceship cannot be shrunk, which is also a big expense.Many have adopted new technology, and some attack weapons can be called terrifying.

这艘最终建成的宇宙飞船长度180公里，直径55公里，太阳帆直径300公里；采用龙胆二号发动机1000万台、龙之翼一号发动机1000万台，最大加速度能力为5米/秒^2，最大减速为4.3米/秒^2——主要是太阳帆的作用。

Now the War spaceship is ready to go.Just wait for the signal from the constellation Cetus, and the departure will be arranged immediately.

In addition, after ten years of continuous discussions, explorations, technological breakthroughs, etc. on the Earth side, the determination to go to Barnard's Star has been further confirmed; in addition, the Bright spacecraft has been improved a lot, and two 10-kilometer-long spaceships have even been added. second cabin.The auxiliary cabin stores hydrogen and oxygen after electrolysis, which is a cheap, environmentally friendly, and efficient energy storage and combustion method, and is also a very traditional and mature spaceship propulsion technology.With the addition of the auxiliary cabin, the power of the Guangming spacecraft actually surpassed that of the War!
Of course, power cannot be regarded as the only criterion for a spacecraft.Viability, armed forces, internal environment construction, etc. are all big issues!The Empire's spaceships are the kind that can survive in space for hundreds of years—at least in theory.The nuclear energy inside is exhausted, and solar sails can also be used to capture solar energy.Let the ecology in the spaceship barely maintain.

But again, Earth's Illuminati spacecraft is also waiting for information from the constellation Cetus.The information situation of an exoplanetary system is beneficial for human beings to objectively judge and evaluate the exoplanetary system.To be honest, according to observation, people are surprised to find that the solar system is too rich!There are countless celestial bodies around to provide resources for humans!And relatively.Some star systems have only a single star.There are still a few fragments!Such a star system is not even worth rebuilding—basic rocks are not enough.

But there is another big thing about to happen this year: after rigorous exploration and calculation.The empire is actually preparing to build 6 living planets in the asteroid belt!
It turns out that the asteroid belt is very empty.Between Mars and Jupiter, there is a distance of 5.5 million kilometers, which is almost 3.7 times the distance between the earth and the sun; even the once asteroid belt was as wide as 2.2 million kilometers and divided into two layers.

Therefore, the empire has undergone strict calculations.Six planets can be arranged within the scope of the asteroid belt!These six planets are combined in pairs, and they are satellites of each other, circling each other; the distance between each pair of planets can be controlled at a distance of 42 kilometers.

Of course, in view of the poor natural light in the asteroid belt, the empire plans to learn from the transformation technology of Mars and build a large number of mirrors in the orbit of Venus to provide sufficient light for these planets.Anyway, the construction technology of these reflectors is much simpler-compared to those reflectors that can be used to propel the spacecraft forward, it is as simple as building blocks.

However, this plan has not yet started to be implemented, and it will not be until the Empire's War spaceship and the Republic's Bright spaceship leave.After all, building planets out of thin air is not only a challenge to the empire's technology, but it will also affect the gravitational balance of the solar system.Had the impact been caused while the ship was on its way, the consequences could have been catastrophic.Even if this effect is theoretically negligible!

Therefore, the Empire will only proceed to establish such a planet after the spaceship has completely left.

Everything is waiting for the return of the signal from 12 light years away!
From the beginning of the 107th year of the Imperial Calendar, that is, the end of 2162 AD, people began to look forward to it—waiting for information from the first batch of heroes of mankind.

Although, people are full of confidence!

Although, people are full of pride!

Although it is said that the earth technology is advanced!
But... everything cannot escape a "just in case"!
Citizens of the empire who have relatives on expeditions even refresh the official website of the empire every day.

It's really a broken finger... F5 is rotten...

The entire human society seems to be frozen, just waiting for the signal from the warrior to come back!

Live up to expectations, in the anticipation of everyone, the first wave of signal came out!That is, the clear image of the constellation Cetus taken by the spacecraft, and even the space probe launched by the civilization here!
A space probe for an alien civilization?This made many people start to worry... It seems that this alien civilization is not completely incapable of resistance!
From this moment on, there have been signals returning...