NASA has been waiting for ten years to realize its dream. The president-elect sent a congratulatory message, and SpaceX successfully launched its first official commercial manned flight. Dragon spaceship, a space taxi, has officially “started operation” today. < p > < p > at 19:27 p.m. Eastern time this Sunday, at the Kennedy Space Center in Cape Canaveral, Florida, USA, the Falcon 9 rocket engine roared, and the SpaceX manned dragon spacecraft announced its successful launch. The crew-1 mission, named crew-1, is the second successful U.S. manned space launch since May 31, and the first formal commercial mission. Since then, SpaceX has entered a new era of regularly transporting astronauts to and from the international space station. < / P > < p > the launch of the spacecraft overcame the bad weather and the delay caused by the closure of the spacecraft. If all goes well, it is expected that in 27 and a half hours, the Dragon spacecraft will automatically dock with the international space station (ISS) at an altitude of 400 km at 11 p.m. EDT. < p > < p > an hour after the mission, mission commander Michael Hopkins told the ground spacecraft was in orbit and could see the earth’s beauty, and thanks the SpaceX engineers for making the mission possible: “it was a difficult journey. “< / P > < p > this flight is considered to be the first” real “long-term manned space mission of Musk’s SpaceX. The successful demo-2 mission in May this year took two months. Although it also connected with the international space station, its main significance is to verify the feasibility. < / P > < p > the Longfei manned module launched today is named resilience, and its launch mission is the beginning of a series of future international space station missions – as early as 2014, NASA has formulated a semi annual flight schedule, and plans to regularly transport astronauts from various countries between the international space station and the earth. Today’s action is a step in SpaceX’s commitment. The manned dragon spacecraft is the first commercial manned space system certified by NASA. < / P > < p > despite this important milestone, some NASA officials are still reluctant to describe the manned dragon spacecraft as “successfully put into operation.”. The failure of the space shuttle Challenger and Columbia still haunts engineers. < / P > < p > “I think at NASA, people are always tense and we never want to declare victory and stop learning and complacency,” Phil McAlister, NASA’s commercial space flight director, said at a news conference. < / P > < p > but for NASA, the launch is of course crucial: it will ensure that the United States has the means to transport its own astronauts to the space station. SpaceX will become the main supplier of NASA’s manned spaceflight, and the manned Longfei ship will help the international space station carry more astronauts. Soyuz can carry three people on a six-month mission, while the four seater manned dragon spacecraft will begin work, and the permanent population of the international space station will rise to seven. < / P > < p > due to the large number of people, Mike Hopkins pointed out before the expedition that there was insufficient space on the international space station, and some members would have to find a place on the docking manned dragon flying ship if they wanted to sleep during the period of the mission. However, the Dragon spaceship designed to carry up to seven people is large enough and equipped with a bathroom. The conditions should not be bad. < / P > < p > these astronauts are expected to complete a lot of scientific research in six months. More importantly, their journey marks the end of a period of no ship flying. The United States sent astronauts to the moon in the 1960s and 1970s to build the world’s only space shuttle in and out of orbit. It also ridiculed the coarseness of Russian manned spacecraft. < / P > < p > in addition to the safety risks brought by the old design to astronauts, as the most complex spacecraft, every time a part is replaced, there is a high cost of special processing equipment and maintenance personnel. Due to the maintenance period of the space shuttle, only five to six launches a year can be realized, which is far lower than the preset twice a month. There are also skyrocketing launch costs, which cost about 400 million to 500 million per launch. The space shuttle Challenger failed to launch in 1986, taking the lives of seven astronauts. In 2003, all seven crew members of the Columbia crew were killed. Later, President George W. Bush decided that once the international space station was completed, the remaining three space shuttles discovery, Atlantis and endeavor would retire and be sent to the museum because of the complexity and danger. The space shuttle Challenger disaster occurred at 11:39 a.m. Eastern time on January 28, 1986. The space shuttle Challenger, which had just taken off 73 seconds above the Kennedy Space Center in Cape Canaveral, Florida, USA, disintegrated, killing seven crew members on board. The wreckage fell off the Atlantic coast in Central Florida. < / P > < p > as a result of this monopoly situation, the “ticket” of the Soyuz has been rising all the way, reaching an average of US $81 million in 2018. According to statistics, in the past nine years, the United States has paid nearly $4 billion to Russia on this project. < / P > < p > the alternative finally determined by the US space program is not technological innovation, but philosophy and policy innovation, which also creates an ecological environment for the rise of crazy entrepreneurs like musk. In 2009, Obama became president of the United States. Obama, in the midst of the deepening fiscal deficit and financial crisis, advocates cooperation with commercial space companies. In 2011, the Recovery Act proposed commercial crew. The project, similar to PPP, is funded by NASA to start developing spacecraft that can bring astronauts into orbit. After the completion of spacecraft manufacturing, these private enterprises can also make profits by operating space flight services. < / P > < p > at the technical level, NASA also helps these private companies to develop and validate key technologies and production processes through direct technical personnel and patent transfer. According to reports, Garrett & middot; Reisman, a former NASA astronaut, joined SpaceX after retiring from NASA in 2011, and also experienced the mistrust between private companies and NASA. At the same time, Congress is skeptical of such a transition. “There’s not much support in Congress,” recalls NASA director Jim bradenstein. At that time, he was still a member of Congress. Although Obama wants to promote this change faster and harder, he is considering concealing a provision to fund it in the stimulus plan passed in 2009. However, it was excluded because of opposition from Congress and some senior NASA officials. < / P > < p > the SpaceX Falcon 9 heavy carrier rocket has become a star in the space field. Previously, Falcon 9’s first stage rocket has been successfully recovered 44 times. < / P > < p > the Dragon spaceship with which it is partnered is actually a cargo vehicle. Prior to that, NASA had to make the spacecraft manned in order to achieve “full operational” status. < / P > < p > this is a very time-consuming and labor-consuming process, which was finally completed through two test flights: one unmanned flight, and the other was sending two astronauts to the international space station. According to NASA, crew-1 has been upgraded several times on the basis of previous flight experience. For example, the spacecraft’s solar panels have been reinforced. < / P > < p > it must be admitted that crazy musk and SpaceX are not NASA contractors in the traditional sense. Boeing, Lockheed and other companies have spent too much money because of over caution, but SpaceX has the audacity to: < / P > < p > from the highly vertical integration of design and manufacturing to the active embrace of new technologies, musk has really reduced the cost of space engineering. From the onboard and off-board software of SpaceX to the spaceflight engineers. < / P > < p > at SpaceX headquarters in Hawthorne, California, the company’s technicians guide the astronauts from start to finish. It’s not easy for NASA to adapt to this arrangement. < / P > < p > however, NASA engineers work closely with their SpaceX counterparts on critical security issues, and they have access to the company’s most detailed plans. The former still has the right to judge whether SpaceX’s system is safe and the staff can intervene. < / P > < p > in terms of safety, SpaceX’s system is far less complex than the space shuttle. In an emergency after launch, the SpaceX capsule can push itself away from the rocket and land safely. The shuttle has no choice. < / P > < p > as a response, SpaceX employees receive post crash briefs on the two space shuttle crashes and listen to senior NASA staff reports on the agency’s mistakes and how to avoid them. < / P > < p > when new engineers joined the project, they were invited to visit a room at the Kennedy Space Center, which was closed to the public and displayed the wreckage of the space shuttle, so that they would not forget the dangers of their work. < p > < p > SpaceX said the first passengers were not in danger during the descent. But the company decided to redesign part of the heat shield to accommodate future missions. The company also adjusted the parachute of the re-entry module to be closer than engineers expected. < / P > < p > the Falcon 9 rocket failed in another unmanned mission and was shut down before launch, and the company replaced two engines on the rocket booster. Today, NASA and SpaceX leaders often say that they will launch only when they are ready. Musk also continued his tradition of sending short e-mails across the company before the launch, encouraging those who thought the rocket should not be launched to tell him. “I’m not a very religious believer,” Musk told reporters during the first manned test flight in May this year when the two astronauts safely returned to earth, “but I prayed for it. “< / P > < p > by the end of the century, SpaceX’s mission may look ordinary, or even newsworthy. But for those who are engaged in the space industry, it seems that tragedy is not a question of whether it will happen, but when. < / P > < p > in addition to NASA contracts, SpaceX now regularly launches and lands reusable rockets for a large number of customers, and accounts for about 70% of the market. Ten years ago, NASA exported almost all of its commercial satellite launches to competitors such as Russia and China. For the U.S. government, after so many years, the commercial manned program has finally been successful. “When a government changes, the goals are consistent, and this project proves its success. “NASA director Jim bridgenstein said. < / P > < p > now, almost everyone supports the idea of private companies transporting astronauts to orbit. SpaceX is no longer a clumsy, explosive outdoor pedestrian. It is a giant in the rocket field and a core contributor to NASA.