On the 28th day after the Chinese Mars mission landed on the Martian surface, a Martian base built of Martian mud quietly rose on the Chris lava plain.

    It is made of concrete made of Martian clay used by 3D printing module robot layer by layer. There are no edges and corners. The outside is an inclined structure, which can minimize the damage from Martian dust storm.

    There is also an inner wall inside the outer wall. The middle of the two walls is filled with dry ice and dust to resist radiation. Inside, people directly filled in the materials and various inflation modules transported from the spacecraft.

    According to the initial structure, it is composed of sleep cabin, laboratory, hydroponic greenhouse, etc. the external solar panels, wind speed alarm, temperature sensor, etc. are also laid.

    It can be said that this Mars base has basically taken shape and can meet the survival of ten astronauts for two to three years.

    "Everybody, celebrate the completion of the first phase of our Mars base!" in the Mars base, Du Xingyu and his teammates had a dinner to celebrate.

    In addition to dry food and canned fast food, their food also includes fresh bean sprouts that have sprouted in the plant breeding room these days.

    If other space seeds, such as space eggplant and potatoes, hadn''t been produced, they could even cook a small hot pot this time.

    "Cheers!" people raised their glasses in the restaurant. They don''t have wine, but they have beverage powder, which is introduced into the water and added with sugar.

    "Finally, there is a home on Mars!" Su Peng said with emotion. These days, they encountered another Martian dust storm. Fortunately, the wind was not strong, and there was an early warning system, which was avoided in time.

    "Our Mars base hasn''t been officially named yet? Let''s take a formal name together!" Xu Lianqiu suggested.

    "Yes, yes!" Shen Yan and Jiao Mengyun agreed immediately.

    Astronaut Yao Feng suggested: "it''s called ''Mars 1 base''. It''s easy to remember."

    Others gave him a white look at the same time. Shen Yan said, "this name is too bad. At least we should have a memorial name."

    "Yes, it''s better to bring some Chinese culture, which is also in line with the consistent naming method of our space agency," Xu Rui said.

    "Yinghuo has been used as the name of the spaceship... What else?" they thought.

    Xu Lianqiu thought a little and said, "the lunar base is called Guanghan palace. The base of Mars is better called Zhurong palace?"

    "Mars, in Chinese mythology, represents the fire de Xingjun, one of the 28 stars, that is, the God of fire. According to the historical records, the God of fire is Zhu Rong, the son of Zhuan Xu, named Li. So it is called Zhu Rong hall. How about it?"

    "Yes!" agreed Du Xingyu. "It just corresponds to Guanghan palace and spreads our culture to the world."

    "Good name!" said Jiao Mengyun. "That''s it?"

    "Agree!" Shen Yan raised his hand, and the others had no opinion. Therefore, their first base on Mars was named "zhurong hall".

    After the dinner, Du Xingyu planned the task again.

    He said: "we are divided into three groups. The construction group led by Su Peng continues to build the zhurongdian base. I lead the scientific research group to collect materials on the surface of Mars. Shen Yan your information group is responsible for contacting and monitoring environmental changes."

    "Yes!" everyone found their own work and began to work.

    ……

    Du Xingyu will stay on Mars for another month. He doesn''t need to do tasks such as geological exploration. It''s rare to come to Mars. The most important task of their research team is only one, that is to find the traces of life on Mars!

    Is there life on Mars? This is a problem that humans have been curious about for thousands of years. Every Mars probe is trying to find traces of life on Mars. Before that, they have made some discoveries.

    From the geological exploration of Mars, we can know that there were oceans on Mars in ancient times, and there may be Martian life at that time.

    Even now, Mars has water ice and seasonal liquid water. During the exploration of the Mars probe, they found that there were traces of water ice at the poles, underground and some meteorite impact craters of Mars.

    On the Chris plain, Du Xingyu took Xu Lianqiu, Xu Rui and Yao Feng to sailor canyon with a Mars rover.

    On the way, Du Xingyu also took a video, which will be sent later. He explained: "one of the reasons why we chose Chris plain as the landing site is because it is one of the lowest places on the surface of Mars."

    "Many ancient rivers once flowed through the Chris plain, which connects the largest canyon on Mars and the mariner Canyon, the largest canyon in the solar system. This is a complex Canyon system 4000 kilometers long and 7 kilometers deep, 10 times longer and 5 times deeper than the American Grand Canyon on earth!"

    "We''re going to the end of the mariner Grand Canyon now to see if we can find ice or liquid water."

    Du Xingyu sent out the video. It was transmitted to the earth and posted on the Internet more than four minutes later.

    "Updated again! Finally left the base!"

    "There must be Martians. Maybe we earth people are Martian immigrants!"

    "Be careful, don''t encounter Mars dust storm again!"

    "Come on, Ollie!"

    Du Xingyu''s chattering fans have now reached more than 50 million, which is the top traffic and big net popularity. And this number is still rising with each update!

    A few hours later, they came to the edge of the mariner Grand Canyon.

    "My God, it''s really terrible here. I don''t know how to describe it!" Xu Rui was shocked when he looked at the scene in front of him.

    They stood at the end of the mariner Canyon, the largest canyon in the solar system. Here, Mars is like a huge wound with a length of 4000 kilometers cut by a knife. This great rift valley can be clearly seen even from space!

    Looking forward from the edge of the rift valley, even the horizon was cut in half! The gully in front of us goes from shallow to deep, until the abyss is bottomless! It seems to go straight to the nether world!

    Before such natural wonders, they once again felt the smallness of human beings.

    "Hoo!" Du Xingyu took a long breath and said, "let''s start. We don''t have to go deep into the Grand Canyon."

    "Try to find traces of underground rivers, preferably where the sun can shine."

    According to the data detected by tianwen-1, it is inferred that during the high temperature in summer, the water ice in some areas will melt seasonally. In this place, traces of microorganisms may be found.

    Small UAVs were released to detect the surrounding geographical environment. An hour later, they selected five target areas, drove the rover and the folded Mars motorcycle respectively, and went to the field investigation and sampling.

    The first day''s work was limited, but they found pebbles on the ancient riverbed. There is no damage caused by biological activities on the surface of Mars, so the traces of billions of years ago are clearly visible until now!

    It was not until the eighth day that they found traces of water.

    Here is a relic of an ancient lake, located at the end of the mariner Grand Canyon. Several ancient rivers flow into this low-lying land to form a huge lake.

    There should be some water ice in the sand under the lake relics. After being exposed to the sun, part of the water ice melts and forms slightly moist soil.