"Ladies and gentlemen, please note that we are about to arrive at the Jinghai base, and after taking off from the Dhahran base, after about ten hours, we have finally approached the end of the line after being replaced by a lunar space shuttle. Pen | fun | pavilion www. ｂｉｑｕｇｅ。 info" Inside the space shuttle, the graceful voice of the flight attendant sounded.

Now, it is 2020, and after more than 30 years of development, the world has undergone earth-shaking changes.

Under the threat of extraterrestrials, the global economy is highly integrated, and while the economy is developing substantially, there are also more funds, which are invested in the space field.

Due to the geographical advantage, Zakhran replaced Baikonur as the largest space launch base, and Baikonur was mainly reduced to a space tracking and control center, and at the same time, the moon base has become one of the largest bases!

The Jinghai base covers an area of more than 100 square kilometers, and it has become a lunar city!

The early pioneers built a rough base, and later, with the increasing number of tools to land on the moon, various lunar factories were established on the surface of the moon, and a large area of underground bases were built by using local materials on a large scale! And in the entire lunar base, there are tens of thousands of people working!

Moreover, the moon base is also open to the outside world, and the wealthy businessmen on the earth, even the married couple, will take a trip to the moon as one of their projects.

From the Dhahran base, take the commercial Shenlong space plane to the space station in space.

The Shenlong aerospace aircraft is improved on the basis of the Dawning Goddess, using a large number of repeatable components to reduce the launch cost, in particular, using some special elements mined from the moon as components of the aerospace aircraft, so that the operating cost of this aerospace aircraft is very low, it can be said that the purchase of such a plane ticket is similar to the price of taking the high-speed rail in later generations.

This kind of space plane only transports them to the space station in space, codenamed the space station called the International, which is the fourth-generation space station launched by the Soviet Union, and also undertakes civilian tourism projects.

On the space station International, there are four or five lunar space shuttles docked at any time, which use a nuclear power system to travel between the moon and the space station.

These are two different options: the space shuttle uses variable-cycle engines and can fly in the atmosphere and outer space, while the lunar space shuttle uses nuclear power and does not have to worry about polluting the atmosphere.

After decades of development, these technologies are quite mature and almost 100% reliable!

At the same time, experiencing the feeling of weightlessness and going on a space trip is already a favorite project on Earth.

"The moon is really too desolate." At this time, looking out of the glass of the space shuttle, on the cratered surface of the moon, the girl said dissatisfiedly in a small couple who came to travel.

"Yes, looking at the surface, it is relatively desolate, but when you get to the base, it is lively." The boy on the side said: "On the moon, you can jump several meters high, we can also wear moon suits and walk around outside, especially, the Spirit spacecraft, which is about to take off, we can just watch the launch of Spirit." ”

Courage!

Over the years, through continuous investment in the field of space, the Soviet space technology has also been constantly improving, the most important of which is the technology required for interstellar flight!

If you want to carry out interstellar flight, it will require a lot of cross-era technology, but unfortunately, after so many years, there is still no fundamental breakthrough.

For example, space-time warp technology, first proposed in 1994 by physicist Miguel Alcubire at Cardiff University in Wales, UK, uses "exotic matter" with negative mass and negative pressure that has not yet been discovered. It can warp space-time, allowing the ship to quickly approach the space in front of it, while the space behind it is constantly expanding. The spacecraft is like being in an expanding "curved bubble" that can fly faster than the speed of light without violating the principles of relativity.

However, this technology can only be an ideal, and to warp time and space, it requires a huge amount of energy, even more than the entire energy of the entire universe. Moreover, there is also no evidence of the existence of such a particular substance.

Similarly, there is wormhole technology. According to Einstein's general theory of relativity, the famous American physicist John Wheeler proposed that there may be a narrow tunnel connecting two different space-times in the universe. Such tunnels are called wormholes.

Dr. John, the scientist who came up with the term "black hole", has been accepted by many physicists, but until now, no such space-time tunnel has been found.

There is also an exaggerated technology, that is, multi-dimensional space, the universe that humans can see is three-dimensional, but in fact, there is a higher dimensional space in the universe, if you can master the higher dimensional space, then the spacecraft can travel through it and achieve extreme speed.

Unfortunately, these ideas are only ideas, and there are many technical difficulties that cannot be overcome if they want to be realized, and some are even incomplete in theory.

Therefore, if the spacecraft wants to carry out interstellar flight, the current technology can only rely on conventional power to achieve it!

The Soviets have matured into nuclear-powered rockets, which allow spacecraft to carry less fuel and fly farther distances!

Therefore, the Soviet astronauts could only continue to work on nuclear-powered rockets, and they did not simply increase the thrust of nuclear-powered rocket engines, but adopted more advanced controllable nuclear fusion engines!

Fission and fusion are two different ways, and compared with these two methods, fusion is far ahead.

Just for a reaction equation, the energy released by a fusion is several times that of fission, which means that fusion can release more energy, and at the same time, comparing the atomic weight, you can get a higher average energy! Fusion is a reaction carried out by light nuclei, with few nucleons, and the energy released on each nucleus is hundreds of times that of fission!

In other words, with the same mass of fuel, fusion provides hundreds of times more energy than fission!

For example, more than ten years ago, fission atomic rockets frequently flew to Mars for investigation, and the fusion engine was enough to propel the spacecraft and fly out of the solar system!

However, fusion is not easy to control, in later generations, fission nuclear reactors are everywhere, but fusion, but fusion, can only appear in nuclear bombs, because fusion, uncontrollable.