Share the news to friends and circles of friends with wechat scanning QR code < / P > < p > on September 16. On Wednesday, local time, American space exploration technology company SpaceX launched its first pure commercial manned space mission using its manned dragon spacecraft and Falcon 9 rocket, sending four ordinary people into space for the first time. The rocket booster has successfully landed on the SpaceX unmanned recovery ship < p > < / P > < p > this civilian team composed entirely of non professional astronauts, led by Jared Isaacman, founder and CEO of the U.S. e-commerce company shift4 payments, took off from Launch Pad 39A of the Kennedy Space Center in Cape Canaveral, Florida at 8 p.m. EDT on the 15th (8 a.m. Beijing time on the 16th) < p > the flight is expected to last about three days. The crew will fly around the earth at an altitude of about 575 kilometers, which is farther than any human space flight since the Hubble Space Telescope mission. At this altitude, the manned dragon spacecraft will fly around the earth every 90 minutes at a speed of 27360 kilometers (about 22 times the speed of sound). The manned dragon spacecraft will eventually splash down in the Atlantic Ocean < p > Isaacman is an experienced pilot and adventurer. He also flies with Hayley Arceneaux, a pediatric cancer survivor at St Jude Children's research hospital, Air Force veterans, Chris sembroski, an aeronautical data engineer, geoscientists Entrepreneur and trained pilot Sian Proctor < p > this marks the first flight of the latest orbital tourism business of Elon Musk, founder and CEO of SpaceX, and a step ahead of other competitors with the same intention. Isaacman paid an unknown amount to musk, a billionaire, to get him and his three crew into space. Time magazine believes that the total cost of all four seats on the flight is $200 million < p > this summer, Virgin Galactic and blue origin launched their own space tourism services respectively, and their respective founders, billionaires Richard Branson and Jeff Bezos, participated in the first flight. Compared with the space flight of inspiration 4, these sub orbital flights lasting for several minutes can only be regarded as short space jumps < p > among the emerging commercial rocket projects, SpaceX is already the most mature participant, launching a large number of cargo payloads and astronauts for NASA to the international space station < p > the crew of inspiration 4 will not participate in the operation of the manned dragon spacecraft, which is completely controlled by the ground flight team and the airborne navigation system, even if the two crew members are licensed pilots. Isaacman is qualified to fly commercial and military aircraft. He serves as the "commander" of the mission, and Proctor, a geoscientist and former NASA astronaut candidate, is designated as the "pilot" of the mission < p > the four crew members spent five months on strict preparations, including adapting to high altitude, gravity centrifuge and microgravity, and receiving simulation training, emergency drill, theoretical knowledge learning and physical examination. After entering orbit, the crew will conduct a series of medical experiments, which "will help human health on earth and in future space flights" < p > Isaacman said in a statement: "the crew of inspiration 4 are eager to use our mission to help those who will enter space in the next few years or decades to create a better future." (small) < / P > < p >