The dung star whose name was broken by Yuan Haochen and them is not far from the sand star. Pen @ fun @ pavilion wWw. ｂｉｑUｇE。 ｉｎｆｏ

Its orbit is smaller than that of Sand Star (Alpha Centauri B1), and its position within the star system is like the distance between Venus and Earth.

Due to the proximity to Alpha Centauri b (star), it is conceivable that the temperature of the Dung Star is higher than that of the Sand Star. According to their calculations, the average surface temperature is expected to be between 150~200 degrees Celsius.

Due to its proximity, the Mirai spacecraft did not go at a high speed and was scheduled to reach its destination after one Earth day.

.......

On the way, Yuan and Lynn made full use of their time in a special isolation laboratory to study all the biological samples collected on the Sand Star.

Neither Yuan nor Lynn are experts in the field of biology, but they certainly do not lack basic scientific literacy, so there is no problem in carrying out some basic research projects.

After about 10 hours of fighting, Yuan Haochen and the others finally had some preliminary understanding of the life system of the Sand Star.

Extraterrestrial life in a broad sense refers to living matter that exists on planets other than Earth. Including the simplest amino acids and proteins that make up life, as well as some unknown bacteria, of course, the highest level of extraterrestrial intelligent beings are what everyone calls aliens.

After research, Yuan Haochen and the others further confirmed that the life forms on the Sand Star have a lot in common with the Earth.

"Do you think the Sand Star is not the main star of the birth of the Creator civilization?" Lynn analyzed the results of the study while discussing it with Yuan Chen.

"At this point, I am more sure, with the environmental conditions of the Sand Star, it is indeed difficult to give birth to a highly developed civilized world. It should just be a resource planet. Yuan Haochen said with certainty.

"Although the current environment of the Sand Star is harsh, perhaps it was not what it is today 2.1 billion years ago." Lynn guessed.

"No, Sand Star orbited 2.1 billion years ago closer to the B-star than it does now. Therefore, at that time, the ecological environment of the Sand Star will only be more severe than it is now. That being said, I believe that the birth of life on the Sand Star must also have something to do with the Creator. Yuan Haochen added.

"Indeed, whether it is a plant or a microbial sample, it contains basically the same composition of organic matter as the earth."

"The main difference that exists is the genetic material."

Yuan and Lin discovered through a super electron microscope that the biological genetic factors of the Sand Star are completely different from those of the Earth.

They don't use DNA or RNA as their genetic material like terrestrial organisms.

However, their genetic material also belongs to the category of nucleotides and can be counted as a class of xenonucleic acids (XNA). Biologists on Earth have also discovered and synthesized xenonucleic acids (XNA) with similar structures.

Xenonucleic acid XNA, the genetic material contained in the Sand Star organism, is similar to DNA and RNA in function and structure in synthesizing nucleotides, except that they replace DNA and RNA in DNA and RNA with different substances.

These XNAs are also replicated by polymerase-like molecules, and like DNA and RNA, they can also decipher, replicate, and convert nucleotide sequences.

"I suspect that 2.1 billion years ago, the Creator sent the [Source of Creation] to the primordial earth loaded with various organic materials, genetic materials, and other raw materials for life. Over a long period of time, the raw materials of genetic material that first arrived gradually changed in the process of evolution in nature, and then took a similar but different direction of development to the Creator world. Yuan Haochen guessed thoughtfully.

"There's a good chance you're right." Lynn agreed.

"As for other organic compounds such as amino acids, purines, and pyrimidines, they are different from genetic material, because their types are inherently diverse, and there is no mechanism of genetic duplication, so after the birth of the earth's organisms, they still use these biological raw materials to form their own bodies." Yuan Haochen added.

In fact, humans have detected hundreds of organic molecules such as formaldehyde, ethanol, and amino acids outside the earth. Therefore, all kinds of organic molecules are not rare in the universe.

"In that case, there is a problem that we must consider carefully." Lynn said with a deep face.

"Do you mean the food problem?" Yuan Haochen asked rhetorically.

"That's right."

"During the exploration of the Centaur Alpha System, at least now we have solved the problem of drinking water and oxygen supply." Yuan Haochen smiled and said, it can be seen that he is still relatively optimistic about the acquisition of survival materials.

"Do you think we can use the plants on the Sand Star as food? Or do we need to use the natural environment of the Sand Star to grow crops on Earth. Lynn asked bluntly.

"This ......"

Yuan Haochen smiled slightly, and then began to think seriously about this question.

As the saying goes, people take food as the sky, and eating is the eternal pursuit of living beings.

When human beings arrive at the alien habitable planet, replenishing the granary in time must definitely be done to explore the alien planet, as the so-called "there is food in the warehouse, and there is no panic in the heart". Catching a sheep on Earth and making a roasted whole sheep is a delicacy in the world, but if you catch an alien sheep, do you really dare to bite it?

Whether alien creatures can eat or not depends first on what they are made of.

Although the creatures of Sand Star are the same as those on Earth, they are all nucleic acid/protein organisms that use water as a medium, but they are not the same in terms of actual composition. Even if we are living on earth, we can't digest it all, such as the enoki mushroom, which has the reputation of "see, you, tomorrow".

Therefore, when you go to the alien planet, you must not catch whatever you see, and eat whatever you catch.

Although the plants on the Sand Star are also rich in carbohydrates and other nutrients needed by the human body, Hara and Lynn are most worried about their xNa, which is different from that of Earth creatures.

Theoretically, because the digestive system of earthlings does not contain the degrading enzymes of Sand Star's specific XNA, these XNAs will not be able to absorb and be excreted after passing through the human digestive system. However, it cannot be ruled out that XNA may also acquire genetic information from specific RNAs and DNA and cause damage to them.

If such a situation does occur, the threat to the human body must be far greater than that of genetically modified foods......

(To be continued.) )