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Opponent: the risk of musk star chain project is too high, endangering space and environment

Use wechat scan QR code < / P > < p > to share with friends and circle of friends < / P > < p > <-- Startfragment -- > < / P > < p > Elon · < a target = "_ blank" href=" https://news.163.com/news/search?keyword=%E9%A9%AC%E6%96%AF%E5%85%8B "> Space Company of Elon Musk < a target ="_ blank" href=" https://news.163.com/news/search?keyword=SpaceX "> SpaceX < / a > is accelerating the construction of" star chain "< a target ="_ blank" href=" https://news.163.com/news/search?keyword=%E5%8D%AB%E6%98%9F "> satellite < / a > Internet services, and occupies a leading position in this field. But it also prompted its competitors, regulators and experts to form an opposition alliance. They believed that musk was establishing a near monopoly position, threatening space and < a target = "_ blank" href=" https://news.163.com/news/search?keyword=%E7%8E%AF%E5%A2%83%E5%AE%89%E5%85%A8 "> environmental safety < / a > SpaceX is allowed to put about 12000 satellite chains into orbit, providing ultra-high speed Internet to every corner of the earth. In addition, the company is already seeking permission to launch another 30000 satellites. Now, viasat, < a target = "_ blank" href=" https://news.163.com/news/search?keyword=OneWeb "> oneweb < / a >, Hughes network systems, Boeing and other competitors are challenging the space race set off by the star chain in front of regulators in the United States and Europe. These people complained that Musk's satellite network blocked the signals of their equipment and posed a substantial threat to their satellite internet project < p > Star chain Internet service is still in beta testing stage, but it has disrupted the industry and even prompted the EU to develop a competing space-based Internet project, which will be announced at the end of this year. The main argument of the critics is that Musk's "launch first, upgrade later" strategy allows him to put speed above mass, cramming the earth's already crowded orbit with a large number of microsatellites, which may need to be repaired after launch < p > Chris McLaughlin, head of government affairs at oneweb, SpaceX's competitor, said: "SpaceX has taken a Tesla like and ambitious approach in space: they first launch satellites, then upgrade and repair them, or even completely replace them. Each of our satellites seems to be carefully polishing a Ford Focus and testing it strictly to ensure its normal operation. " SpaceX admitted in 2019 that about 5% of the first satellites launched failed. In the process, they will gradually fall back to the earth and burn up in the atmosphere. In November 2020, Jonathan McDowell, an astrophysicist at the Harvard Smithsonian Center for Astrophysics, calculated that the failure rate of satellite chains is close to 3%. Since then, SpaceX has significantly improved the design of the satellite chain, McDowell said, with a current failure rate of less than 1% and further improvements < p > but McDowell said that even with continuous improvement and reduction of failure rate, given that SpaceX will run so many satellites, it also means that the orbital safety is facing relatively high threat, because the probability of satellite collision increases sharply. "SpaceX is obviously constantly improving the design of satellite chains, but this is a very challenging thing they are doing, and it is not clear whether they can manage the final space-based satellite network," he said < p > SpaceX has more than 1300 satellite chains in the earth's low orbit, and about 120 satellites are added every month. The number of satellites launched by SpaceX is now expected to exceed the total number of satellites launched since the 1950s, or about 9000. Orbital space is limited, and the current lack of universal regulation means that companies can deploy satellites on a "first come, first served" basis. Musk is expected to take ownership of most of the free orbit, largely because, unlike many of his competitors, he has his own launch vehicle In the next few days, the Federal Communications Commission (FCC) will decide whether to approve SpaceX's request for license modification to allow more of its satellites to operate at lower altitudes (550 km). If approved, competitors' satellites will have to bypass satellite chains to deploy their own satellite networks < p > other space companies have asked the FCC to impose restrictions on SpaceX, including reducing the satellite failure rate to one thousandth, and improving the anti-collision capability while ensuring that other satellites in orbit above it are not hindered from transmitting data < p > mark dankberg, the founder and executive chairman of viasat, said: "you should have fewer satellites and enhance their capabilities." Dankelberg earlier warned musk that SpaceX posed a threat to rail transit. Musk commented on Twitter: "it's more like the star chain" poses a threat "to viasat's profits." "Globally consistent standards and a competitive environment are essential for maintaining a safe and sustainable orbital environment," a Boeing spokesman said Boeing is also challenging SpaceX at the FCC to amend its license < p > in the space area where the satellite chain network operates, its satellites orbit the earth at the speed of 28968 km / h. Any collision may produce high-speed debris, making the orbit unusable for several years. Competitors say the low mobility of the satellite chain means that other companies' satellites must take evasive actions when there is a collision threat < p > according to oneweb and the U.S. space command, the satellite chain nearly collided with other satellites twice in the past two years, including forcing oneweb operated satellites to evade on April 2. Musk claims that its satellite is equipped with an AI driven automatic collision avoidance system. But according to oneweb's McLaughlin, the system had to shut down when the satellite chain was less than 60 meters away from its satellite < p > McLaughlin also said that when oneweb contacted the chain's engineers, they admitted that nothing could be done to avoid the collision and shut down the collision avoidance system so that oneweb could bypass the chain's satellites without interference. Starlink has yet to disclose the details of their AI collision avoidance system. Astrophysicist McDowell says it's hard to trust such a system when people don't know what data it uses < p > according to the European Space Agency (ESA), which operates EU satellites, a similar incident occurred in late 2019 when a satellite chain nearly collided with an EU meteorological satellite. The agency said it could only contact the star chain by email, but laterEU engineers had to start a collision avoidance procedure because the organizers said they would not take any action < p > < b > competition in the field of space-based Internet intensifies & nbsp < p > < p > there are more and more broadband satellite networks in LEO: Amazon's project Kuiper plans to launch 3200 satellites, oneweb plans to launch about 700 satellites, and telesat of Canada hopes to launch about 300 satellites. Having a satellite network capable of transmitting broadband Internet to the earth is a strategic priority for the EU, which is expected to soon publish a roadmap for public-private partnership to create a broadband satellite network worth about 6 billion euros (7.2 billion US dollars) by the end of this year, an EU official said According to space security experts, the increase in the number of satellite networks means more regulation is needed to avoid potential disasters. "It's a race against the clock to launch as much as possible into space to compete for real estate in orbit," said moriba Jah, an associate professor of Aerospace Engineering and engineering mechanics at the University of Texas at Austin. Musk is just doing what's legal, but it doesn't have to be safe or sustainable. " However, most governments welcome the emergence of satellite broadband network, which is a cheaper and faster choice to build broadband network. In Germany, Europe's largest economy, Deutsche Telekom, the leading telecom operator, recently expressed its willingness to join the star chain project. Timotheus H ö "I really admire musk and his ideas," he said in January( Small) < / P > < p > <-- EndFragment-->


2023-03-22 10:04:32

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