Die on Mars

Tang Yue had to move out the supplies he had packed up and reopen all the packed boxes. Regardless of whether the earth was missing permanently or temporarily, he had to survive on this desolate planet first.

Survive alone.

This is also the training Tang Yue received: when he is in a desperate situation and loses contact, persist in surviving and wait for help!

"Check the oxygen and fresh water first." Old Cat instructed, "Then check the food, medicine, electricity, fuel, energy, redundant spare parts..."

"Mr. Tang Yue! Mr. Tang Yue!" Maidong shouted eagerly on the channel, "I...can I land? Come to your side?"

Tang Yue glanced at the old cat.

The old cat slowly fell silent.

Tang Yue and Lao Mao both knew this.

Ophiopogon japonicus cannot land.

The only lander currently standing on the sand outside Kunlun Station is called the "Eagle" spacecraft by Tang Yue.

The "Eagle" spacecraft is the only vehicle in Tang Yue's hands that has the ability to escape the gravity of Mars and enter orbit to dock with the Joint Space Station.

If nothing unexpected happens, after Tang Yue completes all his work, he will leave Kunlun Station on this lander, go to the Joint Space Station, and then return to Earth on the Orion 2 spacecraft.

But this thing is a one-time use. It is divided into two parts: an ascending stage and a descending stage. Only the ascending stage—the upper part of the lander—will actually leave Mars, while the lower part will remain on the surface of Mars.

The upgrade of the lander is responsible for sending Tang Yue to the United Space Station. This is its only function and mission. After the mission is completed, it will be abandoned and has no ability to re-enter the atmosphere. In other words, Tang Yue has the ability to re-enter. Joint Space Station, but once he got up there he could never get back down.

There is not even a lander on Maidong’s space station. The next lander was supposed to be brought by the Orion spacecraft two years later, but now that the earth has disappeared, the next expedition team to Mars will never set off.

There is an Orion 2 spacecraft on the space station, but Orion is just a space shuttle, responsible for traveling back and forth between the Earth and Mars. It will immediately disintegrate and burn to dregs upon entering the atmosphere.

"I see."

The girl's expression slowly dimmed.

She can only stay on the space station.

Fate played a cruel joke. They were clearly the last two people in the world. They luckily escaped the catastrophe, but they were unable to cross the short distance of four hundred kilometers.

On the scale of the universe, which is often measured in light years and astronomical units, compared with the distance between earth and fire of 55 million kilometers, this insignificant 400 kilometers is really negligible, just like the layer of glass on a computer monitor It was so thin, as if Tang Yue could touch the other person by breaking through this layer of glass.

If someone drew a map of the solar system, then on the map, Tang Yue and Ophiopogon japonicus would be so close together that they would not be able to fill even one pixel.

But for a person who is 1.7 meters tall, 400 kilometers is still too far, so far that we may never see each other again.

A slight difference is a natural chasm.

"Girl, don't be discouraged first, let us think of a solution." The old cat comforted her, "As the saying goes, if you keep the green hills, you don't have to worry about running out of firewood. As long as everyone is safe, it will be fine. Find a way... There is no perfect way."

"Yes, yes, yes, Miss Maidong, we will definitely find a way to catch you!" Tang Yue nodded, "You have to believe us! I have an old cat here, and the old cat is an expert! He will find a way! Yes Right, old cat?"

The old cat was startled.

Tang Yue kicked the old cat where Maidong couldn't see it.

The old cat nodded quickly, "Yes, yes, yes, I will definitely find a way!"

Maidong bit his lip and nodded.

Tang Yue was really worried that this girl would do something stupid out of her mind.

He himself is careless and heartless, but this little girl may not have such big nerves as him.

After all, the disappearance of the earth would be such a big blow to someone else that he would probably have a mental breakdown.

"Now each of you should take stock of all the necessities for survival, including oxygen, electricity, food, fresh water, medicine and redundant spare parts." Old Mao urged, "Remember to be careful and don't miss anything."

Tang Yue began to count the supplies.

When he was cleaning up Kunlun Station, he had already tidied up the place, packed everything into boxes, and put it away in categories.

It's just that when he was packing the boxes, he never thought that he would survive on these things. He only thought that he was cleaning up the mess for the expedition team, and all he could think about was returning to Earth as soon as possible.

Now these boxes are Tang Yue's entire possessions, directly determining how long he can survive.

The first is oxygen.

Oxygen is the most dangerous thing. Three minutes of lack of oxygen can kill Tang Yue.

There are two life support systems at Kunlun Station.

One is a commonly used regenerative oxygen production system that uses electrolysis of water to produce oxygen. As long as there is electricity and water, the system can continuously produce oxygen.

Normally, the oxygen in Kunlun Station is provided by this system.

The official name of this thing is "Oxygen Generation System", and the abbreviation is "OGS".

It looks like a refrigerator or air conditioner. It is a white cabinet standing in the corner. It is highly integrated.

I think back then the OGS system on the U.S. space shuttle was a behemoth weighing several hundred kilograms.

Although it does not look very conspicuous, the OGS cabinet is the core and most complex part of the life support of Kunlun Station. If something goes wrong with it, Tang Yue will not survive for five minutes.

The other set is a non-regenerative oxygen production system used in emergencies, using solid perchlorate to produce oxygen.

However, perchlorate is a consumable product. Use it every little bit and it cannot be replenished. Therefore, it will not be used in non-emergency situations and is usually kept in the first aid kit.

Tang Yue opened the lid of the OGS cabinet. The green indicator light showed that everything was working normally. There was a slight buzzing sound inside the cabinet, which was the sound of electrolyzed water.

"How long can this thing continue to work?" Tang Yue asked, "Is my lifespan the same as its lifespan? If it dies, I will die too, right?"

The old cat shook his head.

"No, you may not live as long as it does." Old Mao said, "OGS's design life is fifteen years. This system was just replaced last year. It still has at least ten years of life... But you You may not live for more than ten years.”

"Don't worry, I will definitely take it with me before I die."

Tang Yue spread out the maintenance manual in his hand and glanced at the buttons and indicators on the control panel. The OGS cabinet can produce up to 5 kilograms of oxygen per day, providing enough oxygen for six people at the same time. Now only Tang Yue is left in Kunlun Station. Alone, he turned down the power of the cabinet.

When the earth was still there, Tang Yue used OGS as an air conditioner with the idea of ​​not using it in vain. Thinking about it now, he really wanted to strangle himself to death at that time.

He also wants to live longer, so he tries to reduce the power as much as possible to extend the life of the OGS.

"When used by one person, it is enough to produce 0.8 kilograms of oxygen per day." Laomao said.

Tang Yue lowered the power by more than half.

"How long can this thing be used at low power?"

The old cat has the final say.

"If nothing else happens and there is sufficient power supply, it will be no problem to die... maybe fifteen years."