In everyone''s eyes, the height of the rocket became higher and higher, and the sound became smaller and smaller. Finally, the height of the rocket hit the Dragon more than 50000 meters. At this time, all the launching personnel of the whole space center were nervous and relaxed.


    After all, at this time, the first and second stages of the rocket have been separated, and the tonnage of the rocket has been reduced from 5000 to 6000 tons to about 3000 tons. With such a high altitude, even if there is an accident, it will only cause certain damage to the space fighter, and even can not completely destroy the space fighter.


    After all, there is a big difference between a space fighter and an ordinary spacecraft. The shell of an ordinary spacecraft is only a thin layer of skin. The outer armor of this space fighter is thicker than that of the king of land tank, and the armor materials used are more excellent. Therefore, even if the rocket is facing problems at this time, The armor of space fighters can also defend against the energy generated by rocket explosions.


    What''s more, there is a certain danger in launching a space fighter by rocket, so this time, there is no pilot in this space fighter, just an empty one.


    As for pilots, they will not enter the space fighter for test flight until the rocket space fighter is sent into space.


    Finally, with the efforts of everyone in the command center, the rocket put the space fighter into the predetermined orbit, and all the stages of the rocket were recovered successfully.


    At this time, Zhao Feng, who was on the official space station, also boarded a small space plane and flew towards the orbit of the space fighter. Ten minutes later, Zhao Feng also successfully entered the space fighter and began the test flight mission.


    There are many test missions for Zhao Feng this time. Among them, the first thing to do is to adjust the flight orbit of the space fighter, let the space fighter enter the earth''s middle orbit from the earth''s low orbit, go to the Ziwei space station of Tiangong technology, and fill in fuel and nuclear fuel.


    After all these tasks are completed, Zhao Feng and others will drive the space fighter to the lunar orbit, log in to the lunar base, supply living materials and weapons, and then take off again to the Mars orbit at the highest speed for the first manned on orbit investigation of Mars. After all the tasks are completed, This space fighter will return to the moon again.


    The test flight mission of Zhao Feng''s crew is very heavy and will last for a long time. At the same time, on the way to Mars, Zhao Feng and his crew will also meet several small asteroids, which are basically between three and thirty meters in diameter.


    What Zhao Feng wants to do is to test the performance of various weapons of the cosmic fighter when they meet these asteroids, and to test the difference between the attack power of these weapons in the cosmic environment and those on earth.


    After all, testing on earth and earth orbit is far from being more accurate than testing in real space.


    You know, no matter Wang Bin himself, Chinese officials and other space agencies on earth, they don''t want to fight with alien civilizations near the earth. After all, no one has the ability to judge whether this alien civilization fleet will carry out a destructive attack on the earth if it really comes near the earth, or simply put a super virus on the earth to deal with the earth and its creatures.


    Therefore, after many meetings with officials and other space agencies on earth, Wang Bin finally decided that it is best to put the war with alien civilization outside the orbit of Mars, preferably outside the asteroid belt. Only in this way can we ensure the safety of the earth to a certain extent.


    Even at the meeting, everyone said that even this alien civilization was not hostile to the earth, and this time it came to the solar system with a friendly purpose, and it could not be allowed to enter the space within the asteroid belt.


    Because everyone knows that the whole earth and the whole human civilization can''t afford to take this risk.


    After Zhao Feng and other crew members entered the space fighter, Wang Bin, Qin Lao and the heads of major space agencies also came to another command center of the space center under the leadership of Wang Bin.


    Because the previous command center was only the rocket launch command center, not the Aerospace Command Center, and the command center led by Wang Bin was the real Aerospace Command Center of Tiangong technology and China.


    There are not only the orbit data of the entire inner circle of the solar system and most asteroids with a volume of more than five meters, but also the data of all man-made celestial bodies of the whole human civilization, including those long scrapped satellites and satellite debris.


    Of course, in recent years, with the increasing frequency of exchanges between heaven and earth of human civilization, these scrapped satellites and satellite debris and rocket debris have caused many great risks to the safety of air and space aircraft between heaven and earth.


    Therefore, over the past few years, major space agencies have been actively cleaning up these space garbage. After all, with the unprecedented unity of the whole human civilization, there are basically no smoke of war in other regions except some backward regions, which sometimes break out conflicts for a little bit of interests.


    The interest competition among major interest groups has also shifted from the ground to space, and began to compete with each other in aerospace technology.


    When everyone entered the Aerospace Command Center, Wang Bin ordered the scientific and technological staff to do a good job in the support task. After all, the test flight of the space fighter will take a very long time, and Wang Bin and others naturally have to take it with them in the Aerospace Center and pay attention to the test flight data and the situation of Zhao Feng and others all the time.


    Of course, for the sake of safety, when Zhao Feng''s space fighter goes to Mars, in addition to the space fighter they drive, there will be three modified Phoenix II Series aerospace aircraft with them.


    This is just in case. After all, no one knows what will happen on the way from the space fighter to the rocket. The space fighter developed by Tiangong technology is also the first prototype. Wang Bin and they can''t guarantee that the space fighter will be 100% free of any problems.


    It is precisely because of this that the modified aerospace aircraft will be sent. After all, compared with the space fighter, the Phoenix II Series aerospace aircraft have fully proved the safety and other performance of this aerospace aircraft after several years of use.


    So let these space planes accompany you. If there is a problem with the space fighter on the way, these space planes can also carry out rescue.


    However, considering the uncertainty of the road, these aerospace aircraft are unmanned.