It's reasonable for me to have a two-way foil for a second-level civilization, right?

He froze for a moment, turned his head and glanced around.

The next moment, his pupils shrank suddenly!

"Captain! What's going on?!"

Bruno and Joey asked from behind: "Is the Xia people here again?"

"no!"

Hearing Andrew's response, Bruno and Joey were slightly relieved, and the expressions on their faces also relaxed a lot.

"It's something wrong with our central control computer..." Andrew walked in hastily, while throwing down a "hot" sentence.

"hiss!"

"WTF??!"

Bruno and Joey gasped suddenly, their eyes widened suddenly!

……

"Bruno?" Andrew looked solemnly at Bruno sitting in front of the computer, and asked in a low voice, "What's going on?"

During the words, Andrew's eyes were full of panic and anxiety.

This is the central control computer!

Once something goes wrong, all three of them will die in this small Martian cabin!

Bruno typed a few times on the keyboard, and seeing a few lines of error codes appearing on the screen, his expression instantly became ugly.

He turned his head slowly, and looked at Andrew beside him with deep meaning: "Captain, you hit the spot."

"There's something wrong with our air circulation equipment."

"To be precise, there is a problem with the carbon dioxide absorber in the air circulation equipment."

"According to the current progress, in about three days, the Mars cabin will be filled with a large amount of carbon dioxide and other toxic gases."

"Even with plenty of oxygen, excess carbon dioxide kills us."

Andrew's complexion changed drastically.

In panic, a flash of light flashed in his mind: "Bruno! I remember some accessories were carried in Pathfinder [-]. Is there a carbon dioxide absorber among them?"

Before Bruno could reply, Joey said, "Yes! There must be!"

"In order to prevent accidents, NASA specially equipped two complete sets of air circulation equipment!"

Hearing this, Bruno was slightly relieved.

The original dignified expression disappeared, replaced by an indescribable sense of ease.

He shrugged slightly, and said in a joking tone: "Everyone, make a false alarm!"

"I thought we were going to ask Xuannv No. [-] next door for help. Now it seems that our NASA is quite reliable!"

While joking, he opened the hatch of the No. [-] Mars cabin: "Come on, two, let's go to the warehouse to find spare air circulation equipment!"

……

Martian Module 3.

As a warehouse that supports the life of three astronauts for three months, the most stuff in cabin 3 is all kinds of compressed food.

Of course, in addition to all kinds of compressed biscuits, NASA also "intimately" prepared some instant food cans to improve the meals for these astronauts.

Although the taste of these instant cans is not very good, it is still much better than compressed biscuits.

Andrew and Bruno bitterly moved the boxes full of food and fresh water to the side.

"found it!"

Andrew looked at the box with the logo of the air circulation equipment engraved in front of him, and his eyes suddenly lit up.

Hearing Andrew's voice, Bruno also breathed a sigh of relief.

"I found it..." Bruno wiped the fine beads of sweat from his forehead with his hand, "We almost searched this warehouse!"

While talking, Bruno reached out and tugged at the collar, and said with a strange face: "By the way, do you feel a little bored?"

"Have carbon dioxide levels started to rise?"

Regarding Bruno's remarks, Joey raised his watch to look at the data, and then suddenly rolled his eyes.

"What are you talking about?"

"Currently the carbon dioxide concentration in the cabin is 0.1% higher than normal, it's strange if you can feel it!"

"It's purely psychological!"

Bruno smiled and squatted down to help Andrew drag out the big box.

After opening the box, looking at the brand-new air circulation equipment inside, the eyes of the three astronauts flashed with relief.

"I remember that the air circulation equipment needs to be replaced outside the Martian cabin?" Andrew said with a frown as he found the carbon dioxide absorbing device from it, "It seems that we have to carry out an extra-vessel operation."

……

Mars module five.

As the only passage between the Mars capsule and the outside world, the airlock plays a huge role.

When leaving the cabin, the airlock can ensure that the cabin has the same air pressure as the Martian atmosphere.

When entering the cabin, the airlock can ensure that the cabin has normal atmospheric pressure.

These two points not only ensure the safety of the Mars module, but also the safety of the astronauts.

Andrew and Bruno wore bulky silver-white spacesuits, and looked at each other through the arc-shaped glass masks.

The next moment, Andrew reached out and pressed the button on the console.

"drop!"

"Pressure balance..."

"The pressure is balanced!"

As the green light came on, Andrew squatted down slightly, grasping the outer gate leading to Mars at the end of the airlock with both hands.

Chapter 122 The Difficult and Long Drilling Work

"drop!"

The beep sounded again.

The red light on the detector comes on again.

Xia Wanyi stretched out her hand numbly to clean up the ice-soil mixture spread out on the detector.

"Still haven't found it yet?"

Seeing Xia Wanyi's stiff movements from the corner of his eye, Bai Yixuan gave a wry smile and asked on the radio.

Xia Wanyi sighed slightly, and while reaching out to put the next batch of test samples into the tester, she shook her head and said, "Not yet."

"How many meters underground is it now?"

Bai Yixuan raised his eyelids slightly, and glanced at the LCD display on the drill in front of him.

"Counting from the surface, it's already 25 meters."

"25 meters?!" Xia Wanyi's tone was full of surprise, "Hasn't the real ice layer been dug out so deep yet?!"

Bai Yixuan shook his head with a wry smile, and sighed deeply.

"I reckon we'll have to make the trip for nothing this time."

"Who would have thought that the surface filling at the bottom of this terrible crater is nearly 20 meters thick!" Bai Yixuan's voice was full of resentment, "I guess Professor Lu should be stunned by this news, right?"

Xia Wanyi glanced speechlessly at the five meters of drilling steel pipe left.

"So, we have been busy for a long time, which is equivalent to just drilling five meters underground?"

Bai Yixuan laughed.

"Ahem...you can say that."

Xia Wanyi: "..."

Suddenly, Hong Fan's exclamation came from the radio.

"Captain! Stop chatting!"

"The drilling machine seems to have hit the ice!"

Looking at the drilling steel pipe whose descending speed dropped significantly, Hong Fan and Bai Yixuan's eyes showed a bit of surprise.

……

Two 10 minutes later.

"drop!"

As usual, the red indicator light ruthlessly illuminated Xia Wanyi's numb face through the glass mask.

She mechanically brushed aside the dirt debris mixed with more ice cubes in front of her.

Seeing Xia Wanyi's actions, Bai Yixuan sighed deeply.

"Captain, what should we do now?"

Hong Fan straightened up, gently rubbed his sore lower back with his hands, and asked in a low voice, "Do you want to report to Professor Lu?"

Bai Yixuan pondered for a moment, then shook his head.

"It's not that far yet."

"We've only drilled one hole so far, let's go!"

"After all, when we set off, Professor Lu said that this may be an extremely difficult and long job."

……

Mars outside.

Over Mars at night, there are two "little moons" hanging high.

That's Phobos and Deimos.

Compared with the moon, Phobos and Deimos are relatively close to Mars, only 0.9 kilometers and 2.3 kilometers respectively, but because of their small size, they are only one percent of the moon.

Therefore, the two are often unable to reflect sunlight to the surface of Mars.

Even, in some high-latitude regions, these two small satellites cannot be seen at all.

As soon as he stepped out of the Martian cabin, Andrew subconsciously looked up at the sky.

When he saw the two extraordinarily bright large stars in the night sky, he couldn't help but froze in place.

"Look, we're lucky."

"I actually saw Phobos and Deimos at once!"

There was excitement in Andrew's eyes, but soon, this excitement turned into regret.

Unfortunately, the sunlight reflected by Phobos and Deimos, as well as the starlight brought by the stars in the infinite distance, cannot illuminate the solemn dark night of Mars.

"Okay, okay, let's talk about emotion later, don't forget, our oxygen is only enough to support three hours of extravehicular activities."

Bruno struggled to drag the carbon dioxide absorber and toolbox out of the circular gate.

"I said Andrew, can you turn on the searchlights quickly...I can't even see the road!"

Andrew's thoughts were interrupted by Bruno's unsightly whining.

He turned his head helplessly to look at Bruno behind him, and raised his hand to turn on the high-intensity searchlight.

The searchlight was very bright, but it only illuminated the space in front of the two of them.

In the endless darkness, this touch of incandescence seemed a little dim and powerless.

After setting up the searchlight, Andrew reached out and grabbed the tool box on the side, walked to the area where the air circulation equipment was loaded, and skillfully removed the metal protective shell on the exterior of the Mars module.

"Joy, is the air circulation unit on hold?"

To be on the safe side, Andrew asked Joey who was in the first cabin by radio.