Sun Tan told Mark that this starport was built during the Earth-Moon War, at first it was used for military purposes, and after the war, it was rebuilt several times on the original basis, and now the No. 2 port is the largest starport in the human world, carrying 30% of the spacecraft transit mission, and is the largest space hub on the moon, and the largest starport on the earth is less than half of here.

Mark followed him into the interior of a building in the starport, next to it is the command center, which is the heart of the entire starport, responsible for directing the traffic order of the entire port, guiding every spaceship entering the starport to berth, and it is also the largest space "lighthouse" on the moon, which plays a role in guiding and dredging routes. The building that Mark and the others entered was the Hub Detection Station, which was the light on the lighthouse, and the observatories distributed in various locations in the starport would aggregate the data here, and then analyze and calculate it before it could be released.

Mark and Sun Tan entered the hub hall, there was oxygen in the room, they could breathe and communicate normally when they lifted their masks, there were not many staff here, because it was not the peak traffic season at this time, and the number of spaceships coming and going was still within the normal number, and a small amount of manpower plus the intelligent center of the star port could complete the daily work.

Now the artificial technology has far exceeded the past, can complete extremely complex work, and even for a long time does not need manual intervention and adjustment, this is a good thing, but it is also a bad thing, artificial intelligence technology hides a huge danger, the development to today the other side of it has appeared, widely used in all aspects of society artificial intelligence has caused a tide of unemployment, after entering the new home for the first time after the unemployment rate peaked, This is the only way to transition from the old system to the advanced, just like the unemployment of countless textile workers caused by the first industrial revolution, the process of change is painful and inevitably causes sharp contradictions. The most worrying thing is the awakening of artificial intelligence, we have seen a awakening of artificial intelligence, that is, the spaceship center left by the ascendant - the lighthouse, the technological gap between humans and the ascendant is still very large, but this does not mean that we don't have to beware of this happening, because of this, every new technology on artificial intelligence has to go through a very strict review, otherwise, today's artificial intelligence technology can be raised to a few more levels, and today's people frequently touch the taboo door after that, I have already learned one thing...... Proceed cautiously and steadily.

After entering the hall, Sun Tan mysteriously pressed a few times on the contact, avoiding what Mark whispered, and the two walked to the center of the hub hall, Sun Tan looked around, and then suddenly waved excitedly in one direction, and a figure over there was also waving at them, and quickly ran towards this side.

When Mark got closer, he realized that the figure was stepping on a blue-glowing board, like a balance bike, but it was fast and had no wheels floating on the ground.

"Hey!"

Mark hasn't reacted yet, the figure suddenly pounced on him, Mark couldn't help but be startled by her, Sun Tan laughed on the side, and waited for Mark to stabilize his center of gravity and carefully look at the person in front of him, this person himself doesn't know, but inexplicably a little familiar, spanning a time span of fifty years, Mark has long been used to the life of no acquaintances around him, but this person does make him feel extremely familiar.

"Ahem, it's normal that you don't recognize it, let me introduce it to you, this is my wife." Sun Tan pulled the two of them back, and there was no need to worry about falling on the moon, but they would float far ahead.

"Hello, hello, wait...... Your wife, isn't that ......" Mark's expression changed from embarrassment to confusion, then to shock, and finally to emotion, and suddenly he didn't know what to say, and he was stunned in front of his sister, whom he hadn't seen for fifty years.

The last time I saw Ma Yan was a long time ago, it was before Mark went to the moon, for various reasons, Mark couldn't see her before hibernation, and his impression of his sister still retains the appearance of her when she was eight years old, no wonder he can't recognize it, but he feels that there is an indescribable familiarity between his eyebrows.

"Are you alright? Didn't I break it......" Ma Yan stretched out her hand and shook it in front of Mark, she also knew that Mark only woke up from hibernation a few months ago, and the one-year adaptation period was not yet complete, and the body was prone to problems.

"It's fine, it's just ...... I didn't expect to see you, I'm so happy. Mark reached out and touched his sister's face, and suddenly cried in the tone of the back, after a long lonely test during hibernation, Mark's heart is already very tough, but family affection and love can melt the ice and break the rock, how can he not be moved when he sees his only familiar relative.

Ma Yan still looks like he is still in his twenties, with a good face and a slender physique, wearing a hub center work uniform, with a gray sweater inside and a burqa on the outside, which is the favorite color of the moon people with blue lines on a white background, and the surface is covered with the same white armor as the spacesuit.

Sun Tan said that she had undergone surgery, which should have replaced a young body, and after the war, this technology is no longer taboo, as long as you can afford the expensive cost, everyone can do it, which is one of the reasons why the average life expectancy of human beings has greatly increased. Generally speaking, women have a higher desire to choose this kind of surgery, and some people have even done it more than three times, and they have to regain their youth again at the expense of nerve damage, which can be regarded as an addiction, and they can no longer bear the aging of the body after feeling the feeling of being young again, according to the current statistics, excluding illegal surgeries in the black market, women have three times more surgeries than men.

"You were ...... Is it the same way? Mark scratched his head, his sister was very cute when she was a child, but she was not a beautiful embryo, her nose was a little collapsed, and her eyebrow bones were too wide, and now this sister was a little too beautiful, and Mark was obviously not so confident in his family's genes.

"I've adjusted it, I have to change my body anyway, and I must change it to a more beautiful one." Ma Yan stuck out his tongue, looking playful, although he was only twelve years younger than the white-haired Sun Tan, but in a young body, people's mentality naturally became younger.