Manned dragon spacecraft launched successfully, space officially opened to tourists

On November 15, local time, four astronauts from the Kennedy Space Center in Cape Canaveral, Florida, USA took a rocket developed by SpaceX to the international space station. According to CNN, the SpaceX manned dragon spacecraft was launched from the Kennedy Space Center in Florida at 7:27 p.m. Eastern time on November 15. Together with Falcon 9 rocket, Longfei ship carried four astronauts to the international space station, officially opened the commercial flight business of “space taxi”. < / P > < p > the manned dragon spacecraft takes 27 hours from orbit to docking with the space station, and the whole process of automatic flight is supervised by SpaceX and NASA. The rocket was originally scheduled to launch on the evening of the 14th, but due to strong winds in the afternoon at Kennedy Space Center, SpaceX and Nasa decided to postpone the launch time by 24 hours so that the recovery ship could arrive at the spacecraft’s scheduled recovery area on time. This is the first time NASA’s manned international space flight is not only the first time it has been certified as an international space station by NASA. After dozens of successful deliveries of supplies to the international space station, this time, the spacecraft was loaded with not only cargo, but also people – American astronauts Michael Hopkins, Victor Glover, Shannon walker, and Japanese astronaut Hiroshi Noguchi. The manned dragon spacecraft has 7 seats and 16 propellers. The ship is equipped with a launch escape system. If the launch fails, the spacecraft and rocket can quickly separate. From launch to re-entry, the manned module of the spacecraft is connected with the service module, which is equipped with solar panels and materials. In the expensive space travel, the spaceship space “an inch of land, gold”, so the manned module and service module combined only about 8 meters high, about 4 meters in diameter. < / P > < p > “the biggest feature of the spaceship may be the internal touch screen. This design not only makes the function more powerful, but also increases the user experience. ” SpaceX engineer John federspell told the BBC they wanted to make the dragon “feel like a 21st century spaceship.”. The pilot can monitor and control the spacecraft through three touch screens. The large screen gives the spacecraft a strong sense of science and technology, which is completely different from the monotonous simulation buttons and dashboard in the previous space shuttle cockpit. < / P > < p > spaceship seats come in three sizes. When the passenger is seated, the body is embedded in the foam sponge of the chair, which makes the journey as comfortable as possible. Before they set out, they would insert a line from the seat into the right leg of the spacesuit. This is the “umbilical cord of life”, which supplies oxygen and electricity to astronauts. The Dragon spaceship also has a “double fault tolerance” function: when any two instruments fail at the same time, it can still bring passengers back to earth safely. From 1981 to 2011, the space shuttle has been NASA’s main vehicle for sending astronauts into space. On February 1, 2003, the space shuttle Columbia disintegrated when it returned to earth’s atmosphere, killing all seven astronauts on board. The tragedy of Columbia has caused a heavy blow to the manned space industry of the United States. In 2004, then US President George W. Bush announced that the space shuttle would be decommissioned after the completion of the international space station. On July 21, 2011, after the last landing of the space shuttle Atlantis, the controversial space shuttle withdrew from the stage of history. For nearly a decade since then, the United States has not been able to send astronauts into space. NASA astronauts can only travel to and from the international space station by taking the Russian Soyuz spacecraft. In the largest number, 13 astronauts were on board the Soyuz. Before the retirement of Atlantis, Nasa decided to outsource the manned mission to private enterprises. At that time, musk founded SpaceX only a few years ago. After Obama was elected president of the United States in 2008, the government began to support the development of private space flight and promote the commercialization of space. However, the U.S. Congress is skeptical about the commercial manned space program and refuses to allocate funds. But thanks to the efforts of Charles Bolden, a former astronaut and NASA’s first African American director, the government finally agreed to contract NASA’s regular manned missions to private companies. In 2014, NASA locked in SpaceX and Boeing among several competing companies, signing contracts worth $2.6 billion and $4.2 billion respectively. < / P > < p > “SpaceX was founded to allow humans to thrive on different planets,” SpaceX operations director Jessica Jensen told the BBC, “but for years, we have been a very small company, so we have to seize the opportunity. When NASA asked us to transport cargo to and from the international space station, we accepted it < / P > < p > for SpaceX, NASA is the gold medalist. In 2008, Musk’s two companies, SpaceX and Tesla, were in serious financial distress. Musk faces a tough choice: either give the two companies what they have, or give all the money to one company and let the other survive. < / P > < p > “in the end, I decided to break up all the assets and let both companies survive. But it could have been a wrong decision, and it would have resulted in the collapse of both companies. ” He told the US “business insider” website. Fortunately, in December 2008, NASA signed a $1.6 billion contract with SpaceX to deliver goods to the international space station as “express delivery.”. Looking back on the moment he signed the contract, musk said, “I couldn’t keep my peace on the surface. I said ‘I love you.’ < / P > < p > success consists of failure. From a “very small company” to a large company with manned space flight capabilities, SpaceX has had a rough time. In August 2014, a Falcon 9 rocket exploded shortly after the start of the test flight; in June 2015, a Falcon 9 rocket carried out its seventh cargo delivery mission, which caused explosion and disintegration due to fuel leakage; in 2016, a Falcon 9 rocket exploded on the launch pad There are also problems with the parachute system designed to return to earth, and the lack of funding for the commercial manned program, SpaceX has had to postpone its planned delivery of astronauts to the international space station in October 2016. After failure, NASA gradually lost patience. At the same time, Boeing’s R & D also faces many difficulties. On September 28, 2019, NASA director Jim bridenstein posted an ironic tweet: < / P > < p > “I’m looking forward to SpaceX’s statement tomorrow. The commercial manned program has been several years behind schedule. NASA wants to see SpaceX show the same enthusiasm and focus on the investment of American taxpayers. It’s time to hand in. ” In January 2020, SpaceX conducted an in-flight test on the launch suspension system of the manned dragon spacecraft. The success of the test has brought a turnaround to the project. On May 30, the manned dragon spacecraft carried two NASA astronauts for a test flight. After staying at the international space station for two months, they returned to earth in the manned dragon spacecraft. The test flight cleared the way for the official launch of SpaceX commercial manned flight. At the press conference that followed, bridenstein’s tone was much softer. < / P > < p > “if you told me then that we would be here today, I might not believe it.” “Now, musk and SpaceX have accomplished the Mission NASA has given them, and at a rate we didn’t expect,” he told the media However, musk was not able to have a drink with his employees for a while. Just a few days ago, he tweeted that he had a fever and a cough for a few days, and that he had tested positive and negative for the new coronavirus and was now isolating himself. < / P > < p > in addition to NASA, other organizations or individuals can also become customers of SpaceX, as long as they can afford a $50 million ticket. Musk has been ambitious to reduce the cost of space flight through recoverable spacecraft. However, due to the harsh space environment, the service life of a manned spacecraft is only a few months. Continue ReadingIqoo5 series debut strength interpretation of “120 super full mark flagship”

Author: zmhuaxia