Du Xingyu did not release any new video on the service of the dragon ball. In fact, Du Xingyu has stopped updating his social account since the last release of the video of Yinyi.


    I attended several press conferences, and I also attended the inauguration ceremony of the newly completed university of space science and technology.


    All actions and scientific and technological achievements of the human Guardian alliance in the past two years are kept confidential.


    Because they are not sure if there are any alien spies on earth!


    Now the latest detection devices are installed in major cities and important facilities on earth. If there are spy robots such as "motley", they will be detected at the first time.


    At the same time, their information network has also been transferred to the quantum communication network with higher confidentiality.


    Everything is to prepare for the "war"!


    ……


    Six months later, the solar system.


    About 45 astronomical units from the earth, this is the Kuiper zone.


    There are meteorites, comets and asteroids everywhere. There are more than 100000 asteroids with a diameter of more than 100 kilometers!


    In the past, it was difficult for human beings to know the real situation of the Kuiper belt. Over the past decade, with the development of human space technology and the implementation of the solar system satellite network plan, a large number of exploration satellites have flown into the Kuiper belt to explore the situation here.


    There is a delay of about 5.5 hours from here to the earth.


    Because the Kuiper belt is too large, even though more than 100000 exploration satellites have flown into the Kuiper belt in recent years, humans still know little about the Kuiper belt.


    Somewhere in the Kuiper belt, a human exploration satellite is flying at high speed. It is photographing the situation here.


    Through the telescope on the exploration satellite, a thing that does not belong to the Kuiper belt is observed by it!


    It''s a jellyfish like spaceship, or a warship.


    It floats next to a giant meteorite. Under the warship, a pipe similar to a jellyfish tentacle is absorbing the material of the giant meteorite and transporting it into the spacecraft.


    In another tentacle pipe, a large amount of waste materials are discharged.


    5.5 hours later, when the solar system satellite monitoring network Department of the human Guardian alliance received this picture, they also received a picture before the laser attack.


    Obviously, the detection satellite was soon discovered and destroyed by the other party!


    ……


    In the Mars base, Du Xingyu is accompanying Xu Lianqiu for a physical examination, a serious one.


    "How''s it going?" Du Xingyu asked.


    "Very good, nothing uncomfortable." Xu Lianqiu''s complexion is ruddy, her skin is as smooth as jade, and her state is like a young girl in cardamom years.


    "Miss Xu''s cell state is very young! Her self-healing ability is far beyond that of ordinary people." the female doctor in charge of the examination said, "there has been no such thing in the history of medicine."


    "It seems that it helps a lot." Xu Lianqiu stretched out her palm and the design of Klein bottle stayed there.


    "I don''t understand. Anyway, it seems like a good thing now," Du Xingyu said.


    At this time, the smart glasses in his pocket vibrated slightly to remind him of new news.


    At this time, human chip technology, electronic technology and display technology have been improved, and lightweight smart glasses can replace the functions of previous smart phones.


    Du Xingyu put on his glasses and he Jingcheng appeared on the lens. He said, "urgent news, we have found the trace of the suspected alien fleet!"


    "Really? I''ll be there soon!" Du Xingyu immediately took Xu Lianqiu to the secret conference room of Mars base.


    He Jingcheng had already been waiting for him in the conference room, and important alliance members came over here.


    The top leaders of the alliance on earth also endured a few minutes of information delay and held remote meetings with them.


    "Watch the video." he Jingcheng played the picture taken by the satellite again.


    Everyone in the conference room was surprised.


    "It must be the spaceship of alien civilization that didn''t run away!"


    "Have they all come to the Kuiper belt? At their speed, can''t they come to the earth in half a month?"


    "This small ship seems to be mining. Where is their main fleet?"


    "Do you have any more information?" Du Xingyu asked.


    "For the time being, there are only these. But this has enabled us to lock in a target area. We will mobilize more exploration satellites to spy on this area," he Jingcheng said.


    "This should be just a mining ship," Xu Lianqiu analyzed. "Since the mining ship is here, it''s not far from the real fleet."


    "Maybe they have already reached the Kuiper belt," said Du Xingyu. "Even now, it only takes more than 20 days for our warships to reach the Kuiper belt from the earth. They must be faster."


    "But the detection satellite did not find a warship coming towards us. There are several possibilities."


    Everyone listened carefully, and Du Xingyu continued: "the first possibility is that they have advanced warship stealth technology and can avoid our detection satellites. If so, we must prepare for defense immediately!"


    "I have informed the fleet," said Wang Yu.


    "HMM." Du Xingyu then analyzed, "if they don''t attack, but stay in the Kuiper belt, I guess they may be replenishing energy and materials to prepare for the war."


    "Yes," said a military expert, "their warships are only planetary. After sailing a light-year distance, they must consume a lot of energy."


    "When they come to the Kuiper belt, their energy and materials must be very scarce. Therefore, they are not in a hurry to attack, but mining in the Kuiper belt, replenishing energy and materials, and then attacking us!"


    "We must know more information." Du Xingyu firmly said that space war is also an information station.


    On earth, a war only needs to defend land, water and sky. But in the vast space, the enemy''s attack will come from all directions!


    The war and attack of advanced civilization will even be launched from all dimensions, which is impossible to prevent!


    At this time, whoever has more information will occupy favorable conditions.


    "I''ll immediately let the fleet launch five million exploration satellites!" Wang Yu said. "Go all out to search that area!"


    The manufacturing of exploration satellites has been very industrialized, and it does not need to be too large. Human manufacturing capacity can produce 100000 satellites a day.


    "In addition, we can declare a state of war." Du Xingyu stood up and carefully said to all members, "if our inference is correct and the enemy is still replenishing materials and energy, it means that they are not fully prepared."


    "When we find the enemy, the enemy will also know that he has exposed his position."


    "The enemy''s technology is higher than ours, so we can''t give them too much development time. So once we find out where the enemy is, we should attack directly! Now we should start mobilizing warships to the Kuiper belt!"


    "Agree!"


    "Agree!"


    "I agree!"


    "After so long preparation, it''s time to fight!"


    ……


    In the Kuiper belt, more and more exploration satellites began to fly to that area. A few days later, more information was found.


    "Within five days, we found 17 jellyfish mining spacecraft one after another."


    "The three shell shaped warships are not known for their detailed use at present. It is speculated that they may be transport and supply ships." at the alliance space military command, Du Xingyu checked the five-day satellite discovery.


    "In addition, there is a sailfish warship suspected of being a space cruise ship." because we don''t know the name of the enemy''s warships, these warships are named by humans according to their shape.


    "The sailfish warship is flat and long, with a length of up to 1500 meters, almost twice the length of our space cruise ship! The back of the warship is equipped with a ''fin'', which we suspect is a space radar. When it was found, its speed exceeded 2000 kilometers per second, and almost instantly destroyed our detection satellite," he Jingcheng said.


    Du Xingyu frowned. Judging from the current detection situation, it is indeed not optimistic.


    "The biggest discovery is this, which is the new news we received three minutes ago," he Jingcheng said. "Since it was speculated that they collected material and energy in the Kuiper belt, we mobilized exploration satellites to search for asteroids in the Kuiper belt."


    "I didn''t expect to shoot this!"


    He opened the video and a dim asteroid appeared in the "field of view" of the exploration satellite.


    This is Pluto, a famous asteroid in the Kuiper belt. It was once considered one of the nine planets in the solar system. But then scientists found that its diameter was only 2300 kilometers, so it was kicked out of the ranks of planets.


    Pluto is mainly composed of rock and ice water, and its surface temperature is between - 238 ℃ and - 218 ℃. It has a very thin atmosphere of carbon monoxide and methane, and there are some solid nitrogen, methane and carbon monoxide on the earth''s surface.


    In the Kuiper belt, Pluto is undoubtedly a good "energy supplement station", so the alien fleet soon focused on it and began to exploit Pluto to to supplement energy.


    In the image taken by the exploration satellite, a group of warships is floating in Pluto''s outer space.


    From a vague point of view, there are at least more than 200 of these warships, and there are still more in the blind area of view.


    "So many warships!" Wang Yu couldn''t help shouting.


    "There are dozens of jellyfish mining ships, sailfish warships, manta ray warships similar to our silver wing. Huge turtle warships, cancer warships in operation..."


    The types of enemy warships are dazzling. Unfortunately, they are too far away, and the pictures taken by the detection satellite are not very clear. Otherwise, people will have to analyze them for a long time.


    "One of the most terrible and what we think is the biggest discovery this time is the middle one. We call it the giant whale warship!"


    The computer enlarges the part in the image, and everyone can see that in the warship group, the stars and the moon surround a super giant space warship.


    Compared with other warships, it can be calculated that its length is at least 15 kilometers and its height is about 10 kilometers. Its volume is comparable to an asteroid!


    The diameter of the death star that was going to hit the earth was only 30 kilometers! The warship can reach the size of an asteroid, which is a psychological shock!