Postcard

As a member of the scientific expedition team, Zhang Yuan was the first person to land on Europa.

He stepped cautiously down the space elevator and strolled across Europa's ice cap. In the dark sky, only a few lights flickered. These permafrost ice layers have never melted since their appearance, and have a history of at least one billion years.

Looking up, you can see the overwhelming Jupiter.

It is really overwhelming. Its area is about 23.5 times that of the earth when it sees the moon. Visible to the naked eye, there are wood-like lines on the surface of Jupiter.

Sometimes you can also witness the famous, dark red Great Red Spot, watching them quietly like a huge eye.

If someone is afraid of ghost stories, seeing this real blood moon may be scared to death.

Zhang Yuan took a few photos with great interest.

The tidally locked side was chosen as the base because it was less likely to be hit by meteorites.

Jupiter, the big guy, cleaned up countless meteorites for the inner planets of the solar system. With Jupiter as a shield, the probability of the earth being hit by meteorites is much smaller, providing a more favorable environment for the formation of life.

But Europa is not so lucky. Living here, the probability of being hit by a meteorite is greatly increased.

The entire base is also equipped with the most powerful helium-3 nuclear bomb to defend against possible meteorites. No way, who made Jupiter the most important nuclear fuel depot?

"Friends from afar, welcome to the Europa Industrial Base. The edge of human space deployment." A middle-aged man in a spacesuit stood at the gate of the base and greeted everyone with a smile.

Immediately afterwards, he shook hands with the captain again.

Academician Ding turned his head and said to Zhang Yuan: "Let's go, this alien base may be similar to our future deployment...you should take a good look at it."

"I have a few old friends here who want to visit, will you come with me, or move freely?"

Zhang Yuan thought for a while, "I also have an elder who wants to visit. Let's act freely for now!"

"Then see you this afternoon."

The first thing Zhang Yuan did when he walked into the Europa base was to eat a delicious barbecue meal!

The aroma of the barbecue made him drool, and the anticipation he salivated was like doing a math problem!

Even if the taste is not as good as the big meals on earth, it is not synthetic meat after all.

The Europa base, compared to the take-off ship, is simply heaven!

"Not bad, really good! You solved the turbulence problem!" The middle-aged man sitting opposite him was his father's former colleague, and he gave thumbs up and praised repeatedly.

"Uncle Yuan, it's just luck. A numerical simulation method has not completely solved it..." Zhang Yuan smiled embarrassedly.

"Luck? It depends on strength! Do you think I don't know how to do it? There are many applications of turbulence, ranging from astronomy to geography. Look at Jupiter, isn't the Great Red Spot formed by turbulence? By the way, wait a minute What time does the meeting start?"

"About one o'clock in the afternoon." Zhang Yuan replied.

"Then you can rest for a while."

The group of them had been invited to Europa to attend an academic conference on industry.

There are many existing achievements in this base, which are the crystallization of human wisdom and are worth learning from.

The large buildings inside the ice sheet are actually very particular. Various heat dissipation, support, sewage and other structures require overall planning. In particular, the heat emitted cannot exceed the bearing capacity of the entire ice sheet, otherwise the ice will melt too much, which may cause landslides, earthquakes and other vicious accidents.

Europa, as a relatively successful immigrant planet, is definitely beneficial for field investigation and learning a little more new things.

"Uncle Yuan, when are you going to return to Earth?" Zhang Yuan patted his stomach with satisfaction and asked again.

"It will be three years in three months, and I will never come to this ghost place again. I can't live video, and I haven't seen my son and daughter for a long time. The muscles have also begun to shrink. If you don't go back, you will have to wear it on your head. It's a green grassland."

"How can it be..." Zhang Yuan hurriedly shouted.

What Europa produces is the most important resource of a civilization - energy. So this is equivalent to the former Middle East, and the wages must be top-notch.

A working cycle for ordinary workers is about three years.

Even the lowest jobs can earn millions.

But because I am far away from the center of civilization, even though I have money, I have no way to enjoy it, and it is impossible to take care of my family, so I must bear certain risks... All kinds of bullshit, working hard to make money and returning, only to find the story of wearing a cuckold, There are simply too many to count.

"If there is anything else you want to bring back to Earth, I can be a courier for you." Uncle Yuan said with a smile.

"Hmm..." Zhang Yuan thought for a while, "Do you have any postcards? I'll just send some postcards back."

"Okay, there are just a few more, I'll give you all of them."

After thinking for a while, Zhang Yuan wrote several letters to Wang Lili and Xu Yunjing, Professor Wang Zhong, my sister's family and Han Ziyue.

Very short, telling about my recent experience and perception.

When writing Han Ziyue's letter, Zhang Yuan was stunned, not knowing what to write.

"What, is it a girl?"

"Ah, a very cute girl. I don't know how it is now."

"That's it..." Uncle Yuan smiled, as if he understood.

What to write?

With an idea, Zhang Yuan drew his own face on the postcard, and there is a planet floating in the sky, which is Jupiter.

His sketching level is not very good, he just learned briefly from the painter Erwin. The whole portrait looks crooked, much uglier than himself.

However, because of the ugliness, it looks inexplicably funny.

Sign your name below.

[Zhang Yuan, 2265.8.31]

I have no chance to accompany you all the way, no excuse to talk with you all night long, and no chance to tell you about my current life. I can only send a postcard to tell you that I am fine. It is better to miss each other than to meet.

Value each other.

Zhang Yuan sighed slightly in his heart.

In the end, he kept one for himself.

After thinking about it, I wrote on it: [Today, we have come to Europa, the outermost industrial base of human beings, where the mothership will carry out the last resource replenishment. Europa is not as good as the earth, but it is more grounded than the spaceship. After all, it is a planet. ]

[Next, we will go to the distant starry sky. I don't know when we will reach another planet. ]

[The long night is long, and I don't know the road ahead. Hope that in the future, we can remember this beautiful and tender day. ]

[2265.8.31]

Written, but inexplicably heavy.

Zhang Yuan raised his head and said, "I'll keep this one for myself, the rest, after you return to Earth, just put it in the mailbox for me."

"Okay, it's a small matter. It's so strange!" Uncle Yuan put away the stack of postcards and nodded solemnly.

"Thank you! I'll go first."