Half-immortal civilization

Three mechanical fish swung their tails and swam downstream in the low-temperature "water" of more than 100 degrees below zero.

But, the result is really disappointing.The density of liquid methane is only 0.42 (water is 1). As a result, a few mechanical fish fell to the bottom of the "water" before they could shake their tails a few times.Fortunately, the quality passed the test, and after all, there was methane as a buffer; so it landed safely.

The ground below is solid ice, but the composition of this solid ice is not hydrogen dioxide, but carbon dioxide!Carbon dioxide is heavier than methane, so it falls below, which is understandable.

The temperature here has risen to minus 99 degrees Celsius, but the temperature is still very low.

However, what was even more frustrating was that the detectors on the mechanical fish showed that there was still liquid under the dry ice, so it should be liquid carbon dioxide.

Then, make a hole!
The depth of liquid methane is [-] meters. After detection, there is no sign of life. It seems that if you want to produce life, you really can't leave the water.

Just how to make holes is a headache.After all, we are space pilots and expedition members; simple scientific research, investigation, sampling, etc., are still no problem.But digging a deep hole in such a place is really beyond the scope of ability.Of course, it is also beyond the range of mechanical work carried.

You must know that the liquid methane is more than 70 meters away from the surface, and the liquid methane also has a depth of [-] meters; and the dry ice layer below, after inspection, is also [-] meters thick, and there is still a deep layer of liquid carbon dioxide here; The powerful ray detectors can even vaguely detect that the liquid carbon dioxide is hundreds of meters deep, and there is a solid body below it. This should be the real ice layer.

To reach the ice, you need to drill at least 400 meters deep!If it's solid, it's okay, if it's cold, it's colder, and the space suit can still solve it.But it's all liquid here, so it's a pain in the ass.

"Then, Captain Liu, can we dig deep wells around here, just like we did on Ceres." Yang Zhencheng thought for a long time before he came up with such a good idea.

"No!" Liu Haibo directly refused, "After computer simulation just now, if you do this, there is almost a [-]% chance of causing a blowout. But the blowout here is not oil, but liquid carbon dioxide, or even liquid methane. Are you sure you can Survive a spray like this?"

"Uh...but such a phenomenon didn't happen on Ceres!" Yang Zhencheng tried his best to save face.

"Gravity is low on Ceres, and there is hardly too much pressure; and the ice is lighter than water and floats on the water. But we are Mars here, it already has enough gravity, and the surface is a thick layer of rock , very heavy. Therefore, once the earth’s crust is pierced, under this heavy pressure, basically, we will all experience a blowout, and few people will survive.”

Liu Haibo's expression became a little serious.Every decision I make is now related to the lives of 20 people.This burden is actually very heavy.Because once I have suffered heavy losses here, it will also have a huge adverse impact on the subsequent development of the master company.

"Then, what should we do?" At this moment, everyone felt helpless.It wasn't until this time that everyone suddenly realized that they were not omnipotent!Some of the previous excitement has been removed a lot.

Liu Haibo frowned and thought for a while, and finally resorted to a big killer: "Let's go farther away, let the spaceship use the rail gun to open the way!"

"Damn!" How could I forget this baby bump!This is what many people think.

In an instant, everyone returned to the Mars rover, running desperately into the distance.

"Here, we should be able to see the spectacle of the railgun hitting the ground." Ding Shiyou looked forward to it.

"If you want to die, say so, here is only three kilometers away. Keep going, and it is safe to go 100 kilometers away. Don't forget, the gravity of Mars is low. If there is too much methane and carbon dioxide ejected, it can still bring us It will cause great harm." Liu Haibo stared at these guys fiercely, in order to have a good time, he didn't care about anything.

An hour and a half later, all the people had come 100 kilometers away, and now they could only stand on a relatively high ground and look ahead. In fact, 100 kilometers away, they couldn't see anything.Everyone is complaining, but that's all.

"Please take cover, everyone, we can't be sure what will happen next. Now the countdown begins. 60, 59..."

The countdown sound not only sounded in the spacecraft, but also sounded in the headsets of Liu Haibo and others, letting everyone know the current status.

“10、9……2、1、0！开始。”

A few minutes later, a meteor flashed across the sky and hit the deep well violently. Before the sound came out, the first thing I saw was a splashing waterfall, which was liquid methane and so on.

This is a waterfall that can never be seen on the earth. A large amount of methane is sprayed into the air, as high as a kilometer, and before it can land, it has all disappeared—in other words, all the methane has evaporated.

Of course, some dry ice, gravel, etc. landed on the ground.The temperature at 60° north latitude on Mars is enough for short-term storage of dry ice.

"I think it's the first time in the history of archaeology that electromagnetic railguns are used in archaeology!" Ding Shiyou smiled triumphantly.Although it is said that I did not come up with the idea here, it is the common wisdom of everyone.Think about going back to the earth and telling those cautious archaeologists: We are on Mars, using space-based railguns for archaeological excavations, which is cool!A rail gun with a speed exceeding hundreds of kilometers per second!You are still using brushes and shovels-too outdated, aren't you!

In fact, the use of rail guns is also a last resort. After all, it is impossible for everyone to be like the earth. An archaeological project lasts for several months or even years, and thousands of people are used. After all, this is the sky, and there are not many resources. Had to work around.

"Quick, go back and release the detector!" Liu Haibo was busy running around.The engines were started, and the three rovers were sent back.

The original location is basically unchanged, except that there is more dry ice and some gravel on the ground.

"Here is a piece of ice!" Yang Zhencheng was more careful.

"Store it and keep it frozen." Liu Haibo was busy directing the release of various types of detectors.

The railgun used this time is a bit special. It is a "cannonball" specially prepared for space. It is only one centimeter thick, but half a meter long. It is extremely strong and has strong penetrating power.

"Detectors have detected that the rail gun has penetrated the dry ice layer and the ice layer, but now the dry ice and water are recondensing, and the action must be rapid." A team member reported carefully.

"Release 5 fish bionic robots." Liu Haibo considered for a while before he approved 5.Don't underestimate these mechanical fish that are less than the size of a palm. The internal cost of such a robot is as high as tens of millions even for a master company.In other words, this is standard money-burning behavior.