Bright Sword starts with the grenade flat.

Chapter 416 Searching for a New Planet
After all, although Liu Xiu has used the gene-enhancing potion rewarded by the system on all humans on the entire Wandering Blue Star.

The effects of this gene-enhancing drug are multifaceted. In addition to doubling the human physical fitness and increasing lifespan to 300 years, the more important point is that it completely solves the problem of cancer.

That’s right, it completely solved the problem of cancer, and this is also the uniqueness of the gene enhancement medicine given to Liu Xiu by the system.

Of course, although cancer has been completely solved, other diseases, such as some viral infections, cannot be solved.

After all, although cancer seems to have a higher mortality rate than viruses, cancer itself is caused by internal factors.

To be more precise, cancer is essentially a genetic disease. The principle of the production of cancer cells is that genes that originally play important physiological roles in normal cells are abnormally activated under certain conditions, such as viral infection, chemical carcinogens or radiation, and are transformed into oncogenes, inducing cells to become cancerous.

Genes, as the basic unit of heredity, may indeed cause the inheritance of certain cancers. However, the inheritance process itself is very complex, and the inheritance probability and genetic basis of different cancers vary greatly.

In layman's terms, cancer inheritance is often not the cancer itself, but the "susceptibility" to cancer. Cancer inheritance is different from ordinary genetic diseases, and it is different from "whatever disease the father has, the son will have the same disease", because this situation is actually caused by genetic defects.

The inheritance of cancer may result in multiple people suffering from different cancers. A pathogenic mutation in one gene may cause multiple cancers. For example, a mutation in the BRCA1 gene may cause prostate cancer and ovarian cancer.

In addition, there is uncertainty in the results of cancer inheritance. Not all family members will eventually develop cancer, because most cancers are the result of the interaction between genetic and environmental factors. In addition to "susceptibility", cancer inheritance also depends on the combined effects of psychological factors, dietary factors, and lifestyle habits. In other words, if Jolie had not had her glands removed, she would not have necessarily developed cancer in the end.

But the reason why gene enhancement drugs are said to completely eliminate cancer is that this thing adds a genetic insurance to genetic inheritance.

This genetic insurance is also very simple. That is, if there is an error in the genetic inheritance of a cell, the gene bomb hidden in the cell's genes will take effect and directly cause the genetically mutated cancer cells to self-destruct without the need for the white blood cells in the body to take action.

After all, relying on one's own immunity to fight cancer is completely useless. If you want to solve cancer, you have to start from yourself.

This is what the gene bomb does. Once a genetically mutated cell, that is, the original cancer cell, is found, it will not be given the opportunity to replicate and reproduce, but will be directly destroyed.

You should know that no matter what kind of cancer cells it is, they all develop from a single cancer cell in the beginning. However, because this single cancer cell is so small, it is difficult to detect no matter what detection method is used.

It can only be detected when the single cancer cell replicates itself and grows to a certain scale. But sometimes, if it is a benign cancer cell, it will be fine as long as it is removed.

But if it is a malignant cancer cell that grows quickly and strongly, it will be terrible because it is already too late when it is discovered, and the cancer cell has already spread throughout the body.

However, the gene enhancement drug that the system gave Liu Xiu can completely prevent this situation because a gene lock is added to the gene. Therefore, once it is discovered that a cell has mutated during division, that is, has become cancerous, the gene bomb hidden in the gene will be triggered and completely destroy the cancer cell, thus nipping the crisis in the bud.

After all, compared to cancer cells growing larger and destroying other cells and forcing people to undergo surgery, killing a cancer cell naturally causes much less damage to the human body.

It is also for this reason that human lifespan can reach 300 years. After all, based on the original length of telomerase in human cells, the maximum human lifespan is estimated to be 150 years.

But why is the average human lifespan only around 70 or 80 years old?
This is because the human casualties are not caused by telomerase or cell division reaching the limit, but by various diseases. This is especially true for cancer, because there are too many chemical industries and radiation that induce cancer in cells.

Without cancer, a disease with a very high mortality rate, there is nothing else that can cause a large-scale reduction in the number of humans wandering the blue planet except war or accidents.

Therefore, the annual population growth of Wandering Blue Star is extremely rapid. After all, after the humans of Wandering Blue Star have been strengthened with genetic enhancement drugs, giving birth is not such a painful thing anymore.

It is no exaggeration to say that today's pregnant women are able to deliver their own babies. It is no joke to say that their physical fitness has doubled.

It is precisely because of this that in the face of a rapidly increasing population, in addition to building ecological greenhouses as quickly as possible, the more important thing is to find a new planet suitable for human habitation.

After all, according to the current situation, the number of humans wandering around the Blue Star will definitely exceed 10 billion within ten years, and within a hundred years the population of the Blue Star may reach hundreds of billions.

Such a large population naturally requires multiple life planets to support such a large population.

Therefore, in the future, humans wandering around the blue planet will definitely build a huge human kingdom spanning multiple star systems.

And this is naturally Liu Xiu's current dream. Just like the science fiction movies Liu Xiu had watched in his previous life, the population base of an advanced civilization is at least hundreds of billions.

It is also because of this that Liu Xiu did not adopt the strategy of controlling population growth. After all, the level of civilization still needs population accumulation. Without sufficient population, it is difficult for civilization to develop to a high level.

And if artificial intelligence is used instead, then it won’t be long before this civilization turns into a mechanical civilization.

So the search for planets suitable for human habitation naturally fell on the observatory.

Liu Xiu naturally provided a lot of financial support for this. In order to better observe the starry sky, Liu Xiu even specially approved the observatory to build an astronomical spacecraft with a length of one kilometer.

That’s right, the so-called astronomical spacecraft actually uses the entire main body of the spacecraft as an astronomical telescope.

Although the length reaches thousands of meters, the diameter of the spacecraft reaches more than two hundred meters, so it looks very fat on the outside, unlike ordinary spacecraft that appear very slender.

With such a spacecraft, we can naturally better observe whether there are planets suitable for human habitation in the star systems within a few hundred light years.

The judgment on this is also very simple, that is to determine the habitable zone of the star and see if there are any rocky planets in the habitable zone of the star system. If there are, then further judgment is made by observing the size more carefully to see if the mass is similar to that of the blue star.

(End of this chapter)