"The thickness of the atmospheric AB star reaches 100 kilometers, and also has an ozone layer. The oxygen content in the atmosphere reaches 25%, which is several percentage points higher than the atmospheric oxygen content on the earth. However, it is not more than 30% more than dogs, so there is no need to worry about oxygen poisoning."

"In addition to oxygen, there is 73% nitrogen in the atmosphere, and the remaining 2% is composed of carbon dioxide, water vapor, and rare gases. No large amount of gases that are toxic to the human body are found."

"This atmospheric composition is very similar to that of the atmosphere on our earth, except that the oxygen content is higher and the nitrogen content is less, which is very perfect!"

Soon, detailed data on the atmospheric composition on AB star also came out. After seeing this data, everyone laughed brighter, because the proportion of atmospheric composition here is almost the same as that on the earth, and even because the oxygen content is several percentage points higher, if you breathe on this planet, the air will be fresher.

"I have to say that this is the gift of the universe to our descendants of Yan and Huang. This planet is really perfect. If we do not consider the virus, we can even land directly on this planet to live."

Tang Boyuan sighed with a smile.

"The virus is not without solutions. As long as we can develop the corresponding vaccine, we can also have the same immunity as the natives in a very short period of time, and then we can feel at ease to settle on this planet."

Gu Feng nodded with a smile. Although biological viruses are terrible, modern technology is also very effective in studying viruses. One of the most effective ways to deal with viruses is to develop corresponding antibody vaccines.

"This matter is to be handed over to you. Everyone wants to visit this planet of life as soon as possible. Tsk tsk, this planet is completely opposite to some parts of our earth."

"We have an equator on Earth, and then the north and south poles and two cold zones. But this planet is exactly the opposite. Because it has neither revolution nor autobiography, it relies on two stars to obtain energy. Therefore, the direct shot of the stars on AB forms two hot poles, which is the cold spot similar to the north and south poles of the earth. However, the planet is a tropical area."

"Then as the star light slowly turns from direct light to deflection, the temperature on the planet's surface gradually decreases. Temperature and cold zones. What's extremely interesting is that the cold zone on this planet is actually like the equator on our earth, circling the entire planet, rather than exist in the form of the North and South Poles."

Tang Boyuan pointed to the AB star simulated on the monitor, and a white circular line surrounds the entire planet. This is the cold zone above the planet, and then two red areas. These areas are areas directly reflected by the light of stars, that is, the tropical zone above the planet, but there are two tropical zones.

"Two tropical zones, one cold zone, are just the opposite of the earth?"

Luo Xiaoyao raised his eyebrows when he heard this.

"That's right, with this cold zone as the boundary, the entire planet can actually be two hemispheres in the east and west. The eastern hemisphere is exposed to the light of Star B, and the western hemisphere is exposed to the light of Star A. On this cold zone line, you can see two suns in the sky. And on this planet it is always daytime and there is no night."

Tang Boyuan nodded and said the very interesting part.

"And there are also great differences in the isolation of the cold zone in the entire planet. The Eastern Hemisphere is relatively close to Star B, which is more affected and has a relatively better temperature, so life in the Eastern Hemisphere is more prosperous. Because of the light from A and it is farther away, the climate in the Western Hemisphere is relatively colder and the area of ​​the cold zone is larger."

"There is another interesting phenomenon that life on this planet has the habit of collective migration, because the two stars also rotate with each other, and rotate with this planet as the center point, the rotation period is about 360 years. In the long history of life evolution, life on this planet has also developed a trend of following this change."

"So they will slowly migrate towards a rule from east to west. Please look at this place. This narrow area connects the narrow corridor of two hemispheres of the east and west. Every moment, animals migrate from east to west."

"This may be a phenomenon that is really not conducive to our survival on this planet, because it means that we have to migrate after hundreds of years. Otherwise, you live in the tropical zone now, and it will become a cold zone after hundreds of years. I think this is also why this planet is very suitable for the reproduction and development of life. However, the important reason why the civilization here has been relatively primitive, because it will migrate on the entire planet in hundreds of years, which greatly delays their development time."

Just from some basic things on this planet, Tang Boyuan analyzed the strange phenomena on this planet, and also analyzed the important reasons why the speed of civilization development here has been in the primitive civilization stage.

As time passed slowly, the "Jiuzhou" spacecraft was getting closer and closer to AB until it finally arrived at the outer space of AB and began to moor in outer space.

"Hurry up, hurry up!"

On the spacecraft, small anti-gravity spacecraft in the shape of flying saucers continued to take off. These spacecraft were flying rapidly, flying into the atmosphere of AB and heading straight to various locations on AB, preparing to collect samples from all over the planet, especially the most important virus samples, because to study virus vaccines, the virus must be studied and analyzed.

On a vast grassland in the eastern hemisphere of AB, the grassland is lush and the grass is long and the birds are flying. Various animals live very leisurely on the grassland. The largest number of animals are similar to those of cattle and sheep on the earth. The appearance of them does not look too different, but their reminders are far greater than that of the earth. Any one can be comparable to the big buffalo on the earth, and the large ones can be compared with the elephants on the earth.

In groups, they reproduced and thrived in the dense grasslands of the grassland. On the early grassland, large carnivores chased their prey. Some of these carnivores were very large in size, far surpassing the lions and tigers on the earth. They were fast, agile, and had a strong biting force in their bloody mouths. They were chasing their prey comfortably in the dense grasslands.

In addition to these animals, the sky is also extremely cruel. Large birds of prey are hunting small birds. Some are very large, with their wings spreading for more than ten meters. However, like an airplane, gliding in the sky at a rapid speed. One dives or even directly attacks various animals on the ground, and even large predators are not afraid of them at all.

In the dense grass, a group of short primitive indigenous people quietly sneaked into their prey targets with spears, stone axes, sticks and other weapons. This time, their prey was a huge buffalo-like animal like an African elephant. At this time, the buffalo was still leisurely gnawing on the grass, not paying attention to it having become someone else's prey.

“*&&……………”

Seeing that the time was ripe, the indigenous leader stood up and made loud calls. He had already emerged from the indigenous people surrounded by all sides in an instant. The spear in his hand continued to fly out, forming a spear rain to fly towards the already frightened buffalo-like animal.

Most of the spears were bounced away by the thick skin of the animals, and only a few were inserted into them, but they were not very deep, which was just some skin trauma. The injured animals even ran wildly after taking their hooves. The natives did not dare to hit them hard even when they were on the front.

However, these natives often hunt this animal for consumption, so they were prepared for it. Some natives used long trees as tripping ropes and set traps in front of the buffalo running. When the buffalo was running, the buffalo was tripped by the tree, and the bones on their legs were broken and they could only crawl on the ground. Finally, they were stabbed to death by the spears by the natives.

The natives used stone axes, stone knives and other tools to cut and separate the large animals, and then happily carried large pieces of meat back to their camp. In their camp, there was a group of hungry children waiting for food.

There is no difference between night and day on this planet. Because the sun is all displayed on the same position, it is always daytime. When you return to the camp, the bonfire will soon rise again. Large pieces of meat are mounted and emit an attractive fragrance under the smoke of the fire. The primitive natives gather together to celebrate the harvest.

Just as they were full and drunk, they fell into deep sleep and were resting, a flying saucer-shaped spacecraft came here from the distant sky. The spacecraft slowly approached their camp and soon stopped. The cabin door slowly opened. Teams of earthlings wearing space suits and live ammunition walked out and headed straight for the indigenous camp.

“**…&”

A sirens sounded, and the primitive natives who were responsible for keeping watch finally discovered it. He screamed in panic. There were fires, beasts, animals, etc. that did not dare to approach the camp, unless they were very hungry, they dared to come over to steal some food. But now these people who had never seen before came straight to their camp, which was obviously bad intentions.

Soon the indigenous people were awakened, picked up the stone axes, spears, etc. in their hands to prepare for battle and to defend their homes and families. However, they had not had any contact with the enemy, but these indigenous people fell down quickly, which scared the remaining indigenous people to panic and flee continuously into the grass on all sides.

"I actually let them run away a few, but I caught dozens of them, big and small, old and young, which is enough for experiments."

PS: Please vote, please vote!
Chapter completed!