Tang Yue and the old cat sat back to back, on a rock, looking up at the sky.

"I think we're like gypsies." Tang Yue said leisurely, "Wandering around with a caravan. ”

Above his head was a velvet pitch-black canopy, and the entire starry sky seemed to be falling head-on, shrouding Tang Yue and the wasteland he was in at the bottom of the bowl, and the rocks and desert under the night sky were scorching red, like a silent burning coal seam.

It's a magnificent view that hits the heart of the world, a burning planet under the cold night.

Here, the small grows smaller, and the grand grows bigger.

"I'm not a gypsy." The old cat held the star catalog in his hand and counted the stars in the sky one by one, "I am a gypsy cat...... Have you had your compressed gas cylinder replaced? ”

"It's been changed a long time ago." Tang Yue patted the life support system behind him, Mingguang Armor's compressed gas cylinder ended the historical mission of the sky this evening, after the oxygen was exhausted, Tang Yue changed to an emergency oxygen production unit, and the Mingguang Armor extravehicular suit had a reserved oxygen candle interface, Tang Yue could carry it behind his back.

The emergency oxygen production system is a 60-centimeter-long cuboid, with a high degree of integration, the solid alkali metal chlorate is sealed in a cylindrical metal container, plus an electronic lighter switch and a gas compression filtration device, the design is quite compact, as long as Tang Yue opens the protective cover and pulls the ring under the lid hard, the chemical drug will decompose under the action of the catalyst to produce oxygen, and the oxygen is humidified and filtered to enter the mask of the Mingguang armor.

The carbon dioxide exhaled by Tang Yue will be absorbed by lithium hydroxide in the cycle, and the status of the carbon dioxide absorption system will be directly displayed on the terminal of Mingguang Armor's wrist, green means that the condition is good, and red means that the drug is close to exhaustion.

"Did you find them?" Tang Yue asked.

"Found it." The old cat lowered his head and ticked the list of stars.

"Is the direction accurate?"

"Exactly, of course." The old cat replied, "Tomorrow morning we will continue to the north-east thirty kilometers, and tomorrow evening we will correct the deviation again to ensure that we can reach the coordinates without error." ”

"When I was on Earth, I learned how to look at the stars, but unfortunately I have forgotten all about it now." Tang Yue said, "Lao Wang said that it doesn't matter if you forget, anyway, we don't have to use such a primitive method to identify the direction for a long time...... Actually, it's not difficult, just find Polaris. ”

"But there's no obvious signpost on Mars like Polaris." The old cat leaned lazily behind Tang Yue, and it straightened its forelimbs and pointed at the night sky, "Have you seen that big cross?" ”

"The Great Cross?" Tang Yue turned his head.

"In the heaven to your left, see? That big bright cross is Cygnus, where the world's most famous giant black hole, Cygnus X-1, is a very intense, very large source of X-ray radiation, a rotating lighthouse in the Milky Way. ”

The old cat pointed to Tang Yue, who followed the direction of the old cat's toes and looked at the past, and identified a curved cross in the stars.

"You line the head of a swan with the nearest star in the constellation Cepio, and the midpoint of that line is north." The old cat said, "The direction we are facing now is north, so the left is west, and Kunlun station is southwest of us...... See that stone? Kunlun station is in that direction, if you accidentally get lost on Mars, go in that direction, keep walking, and you can go home. ”

Tang Yue sighed, "Old cat, we don't have a home anymore." ”

The old cat blinked.

"We're aliens." Tang Yue said, "Wandering on Mars, strange alien creatures of unknown origin, no one can find us, no one can understand us, no one can understand us." ”

"The joys and sorrows of mankind are not the same." The old cat said.

"Joys and sorrows are not connected." Tang Yue said, "I used to think crankily, if only emotions could be shared equally, then no matter how sad things are, as long as they are equally divided among 10,000 people, 100,000 people, and 1 million people...... The average person only has to endure one in a million sorrows, and there will be no more crying in the world. ”

"But there are no more smiles." The old cat said.

Tang Yue stared at the starry sky in a daze, and occasionally he would fantasize that the United Space Station was still in the sky, passing over his head.

"It's not early, it's time to rest." The old cat pushed Tang Yue, "You have seven hours to sleep, and the normal working time of Mingguang armor is eight hours, you have to get up an hour earlier to recharge...... It's ten o'clock in the evening, and you'll have to recharge your armor by five o'clock tomorrow morning. ”

Tang Yue yawned and glanced at it.

"What about you? Don't you have to recharge tomorrow morning? ”

"I'll look at the stars again." The old cat sat on a stone.

Tang Yue got up and went back to sleep, there was a pair of sleeping bags in the experimental cabin of the Martian stray dog, but this sleeping bag was only used to pad the floor, and Tang Yue couldn't get into it with Mingguang armor.

They can't sleep outside, the temperature on Mars will continue to drop at night, and it will drop to minus 80 degrees Celsius in the second half of the night, such a low temperature will increase the power consumption of Mingguang Armor's temperature control system, so as to increase power consumption - and the experimental module brings an isotope temperature difference generator, RTG continuous heat dissipation can maintain the temperature in the cabin at about zero degrees, compared to the outside world, this is undoubtedly a paradise in spring.

Tang Yue climbed into the experimental cabin and closed the hatch.

The old cat sat on a stone with a star catalog spread flat on his knees.

This cat sits like a statue for a long time, cats are such strange creatures, sometimes they crouch on the windowsill and do not move, their eyes suddenly reveal a light that no one can understand, maybe it is inexplicable melancholy or strange silence, at this time you may even suspect that they have a similar intelligence to humans, they usually walk through the walls and roofs, and look at human society condescendingly.

Of course, the old cat can't jump on the roof, its stocky stature will probably smash through the roof, and the cats will think that a meat bullet chariot has fallen from the sky, and the chicken will fly and the dog will jump.

But it feels like it's an elf like any other cat.

Humpty Dumpty Elves are also Elves.

No rebuttal accepted!

Suddenly a meteor crossed overhead, a very brief flash, the old cat blinked, it should go back to rest, the temperature is getting lower and lower, low temperature is also a bad environment for it, will greatly lose life.

The old cat patted his buttocks and went back to open the outer hatch of the experimental cabin, the airtight cabin has two layers of hatches, similar to the airlock room, the old cat climbed in and closed the outer hatch to open the inner hatch.

The light in the small experimental cabin was dim, there was no light, it was almost pitch black, only the indicator light of the bright light armor emitted a faint green light, Tang Yue sat on the ground against the bulkhead, tilted his head and was already asleep, the sleeping bag was not on the floor, but tightly hugged in his arms.

The old cat crawled in, turned around and locked the hatch, then leaned over and pressed close to Tang Yue's body, slowly curled up into a big hairball, and closed his eyes.