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Testing site plan in Qingpu for drones

2017-04-25 08:43

Shanghai Daily Editor: Huang Mingrui

Shanghai Beidou Research Institute is studying plans to set up a site to test technology on drones and ship navigation systems.

Gan Pin, deputy director of Shanghai's Science and Technology Commission, said yesterday that the city aimed to promote service platforms on research and commercialization of China's Beidou Satellite Navigation System, to promote the industry's development and lower companies' innovation costs.

The Beidou system, similar to GPS, is completely developed by China.

Gan said the planned test site in Qingpu would play a role similar to the pilot zone in Jiading that allows companies to test self-driving vehicles.

"The test site as a service platform can provide test services that medium and small-sized companies are not able to do," said Gan. "The companies therefore can focus on researches on their core technologies."

Yu Wenxian, head of the research institute, said China's drones industry was still at a fledgling level, and the real intelligent technology had just started.

Yu said the test sites aimed to provide an environment to measure unmanned systems' navigation ability.

"There are several possible sites in Qingpu," Yu said.

Gan added that the city planned to set up a satellite industry base in Lingang area, in addition to the existing research base in Zhangjiang.

China's top level academic meeting on satellite navigation technology, the 8th China Satellite Navigation Conference, is to be held in Shanghai from May 23.

http://www.ecns.cn/2017/04-25/254733.shtml
 
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Commercial space center to take off
By ZHAO LEI (China Daily) 09:27, April 25, 2017

Construction starts on first base for privately financed projects


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China's first man in space, Yang Liwei, compares his hand with his preserved print displayed at an exhibit about China Space Day at the National Museum of China in Beijing. JIANG DONG/CHINA DAILY

Construction began on Monday on China's first commercial space industry center in Wuhan, capital of Hubei province.

The Wuhan National Space Industry Base aims to attract at least 100 enterprises involved in the space industry before 2020 and generate 30 billion yuan ($4.36 billion) in annual gross product by then, according to China Aerospace Science and Industry Corp, the main investor. The center will occupy 68.8 square kilometers in Xinzhou district.

Expace Technology, a subsidiary of CASIC that provides commercial launch services, will invest 1.7 billion yuan to build production and assembly plants for solid-fuel carrier rockets for commercial launches. The company plans to make about 20 rockets at the center each year, it said in a statement.

In China, a commercial launch usually means a space launch financed by an entity other than a Chinese government or military agency.

The CASIC Second Academy will invest 300 million yuan to construct a research, development and manufacturing complex at the center to make small satellites. CASIC has said it will launch 156 small communications satellites into low Earth orbit, at an altitude of 160 to 2,000 km, before the end of 2025. They would form a network capable of global coverage.

Monday was the second China Space Day. On April 24, 1970, China launched its first satellite, Dongfanghong 1.

Also Monday, Expace Technology said it signed a contract with an unnamed domestic client to conduct four commercial launch missions in a week early in 2018.

The missions will employ Kuaizhou 1A, a solid-fuel carrier rocket developed by the CASIC Fourth Academy in Wuhan. The rocket has a liftoff weight of 30 metric tons and is capable of sending a 200 kg payload into a sun-synchronous orbit, or a 300 kg payload into a low-Earth orbit. Unlike most Chinese carrier rockets, it uses a transporter-erector-launcher vehicle rather than a fixed launch pad.

The first flight of Kuaizhou 1A, to launch three small satellites, was in January at the Jiuquan Satellite Launch Center in northwestern China.

CASIC Fourth Academy began to develop Kuaizhou solid-fuel rockets in 2009 as a low-cost, quick-response rocket family for the commercial launch market. It has launched three of the rockets.

Zhang Di, deputy director of the academy and chairman of Expace, said a new-generation Kuaizhou 11 is under development and will make its first flight before year's end.

He said Kuaizhou 11 will have a liftoff weight of 78 tons and will be capable of placing a 1-ton payload into a sun-synchronous orbit at an altitude of 700 km, or a 1.5-ton payload into a low Earth orbit at an altitude of 400 km.
 
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All bike-sharing startups, which together own tens of millions of bikes, will be required to equip their bicycles with BeiDou-enabled smart locks :D

Very good. They must be forced to switch from GPS to Beidou. If they are unwilling to comply, they must be punished.

Same goes with domestic automakers and JVs. This is a matter of national security.
 
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China in talks with Europe to collaborate on moon village construction
By Zhang Huan (People's Daily Online) 17:25, April 25, 2017

China is in talks with the European Space Agency regarding the construction of a moon village, Tian Yulong, chief engineer at the State Administration of Science, Technology and Industry for National Defense and secretary general of China National Space Administration (CNSA), disclosed in Xi’an on April 24.

Deep space exploration is key to China’s space development, Tian stated on China Space Day 2017. Tian added that the Chang'E-5 mission, to be carried out by the end of 2017, will achieve the major task of collecting samples from the moon and then returning to Earth. The Chang’e-4 mission in 2018 will land on the far side of the moon and explore the physical environment and mineral resources in that area - an unprecedented accomplishment for humankind.

In addition, Tian said that the next step for China’s space development is to create a safer, more reliable and economical aircraft, making it more convenient to send people into space. Already, China has started developing a heavy-lift launch vehicle and establishing a transportation system to achieve this goal.

“The cost of flying into and out of space must be reduced if we want to achieve this goal. If the price were around 50,000 RMB ($7,261) for one trip, it would be within reach for ordinary people, and we are now trying to make that a reality,” said Bao Weimin, director of the science and technology committee under the China Aerospace Science and Technology Corporation.
 
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WHAT a major mainstream media THINKS about China's aerospace programs and advancement... read carefully the explicitly and implicitly stated opinions between the lines...:victory::bounce::chilli:

CNBC_-_China_s_secret_plan_to_crush_Space_X_and_t.jpg

China's secret plan to crush SpaceX and the US space program

Clay Dillow, special to CNBC.com Tuesday, 28 Mar 2017 | 7:53 AM ET

China's breakneck economic expansion may be flagging, but the country's ambitions in space show no signs of slowing down. Alongside ongoing efforts to rival NASA by placing robotic landers, and eventually astronauts, on the moon and Mars, China's government is increasingly looking to its burgeoning space sector to rival U.S. companies like Jeff Bezos' Blue Origin and Elon Musk's SpaceX, which is targeting March 30 for the latest launch of its Falcon 9 rocket.


Though Chinese space authorities have publicly announced the country's ambitions to forge itself into a major space power by the early 2030s, President Xi Jinping's government is also considering ways to direct spending that will push Chinese tech companies toward breakthroughs in downstream technologies like robotics, aerospace, artificial intelligence, big data analytics and other 21st-century technologies.

The majority of China's space ambitions remain focused on boosting Chinese prestige at home and abroad. But a push within Xi's government to triple spending on space science as well as the emergence of a small but growing group of privately backed space start-ups suggest that both Chinese industry and government see long-term economic benefits in their investments in space technologies.

That increasing flow of capital toward both China's state-run and private space-related tech companies could place increased pressure on NASA, and eventually on commercial space companies in the United States and Europe.

Satellites and space launchers

Though the exact value of China's spending on its space programs remains shrouded in secrecy, many analysts peg its civilian space budget at around $3 billion annually in recent years, a fraction of the $19.3 billion the United States allocated to NASA in 2016. But on that relatively small budget, China has managed to accomplish big things.

Prior to 2003 China — whose space program dates back to the 1950s — had never put an astronaut (a "taikonaut" in Chinese nomenclature) into orbit. In the years since, it has moved rapidly toward parity with space powers like Russia and the United States. In 2016, China launched more rockets than Russia for the first time, equaling the 22 rockets launched by the United States. Included among those missions was Shenzou 11, which carried a crew of two to dock with China's Tiangong-2 spacecraft, a temporary orbiting space habitat serving as a stepping stone for a larger, permanent Chinese space station in the early 2020s.

These missions, along with China's ambitious plans to send both robots and manned missions to distant bodies like the moon and Mars are largely about prestige, says Dr. James Lewis, a senior vice president at the Center for Strategic and International Studies. "It's escaping what they would call the domination of the West and the U.S.," he says. "It's a way to assert China's independence and a return to the global stage. It sends a message: We're a great power."

But while China's space program has historically served as a state-driven enterprise to demonstrate the nation's technological prowess, China is now looking to its space program to pay economic dividends as well. Beijing recently set its GDP growth target for 2017 at 6.5 percent — the lowest in 25 years — as an economic boom, long fueled by cheap labor and low-end manufacturing, appears to have reached the limits of its expansion.

The march of the unicorns

Though China is home to 43 start-ups worth at least $1 billion, according to CB Insights' "Unicorn List," President Xi has expressed a desire to see more of them, particularly in information technology and network-related businesses, that could serve as China's next growth engine. And there are signs both within and outside of Xi's government, indicating that Beijing believes its space ambitions can provide a boost to both state-owned and private enterprises in China, catalyzing the kinds of technological breakthroughs that will lift both China's global standing and its slowing economy.

In the past year a number of Chinese space launch start-ups have emerged, largely with the backing of universities and hedge funds. Two-year-old OneSpace is developing a 59-ton launch vehicle that it plans to launch for the first time in 2018. ExPace, founded early last year, plans to market its solid-fueled Kuaizhou rocket to those looking to loft small satellites into orbit. Likewise, Landspace — launched in 2015 — claims it will conduct its first commercial launch this year.

These companies aren't exactly SpaceX or Blue Origin. Though technically commercial start-ups, their relationship with the Chinese government are conspicuous. ExPace's Kuaizhou rocket is reportedly based on the launcher for Chinese antisatellite weapons and missile defense interceptors, while Landspace's rocket is based on the government's Long March 11 rocket (for its part, OneSpace was reportedly founded with support from the National Defense Science and Industry Bureau).

But launching small satellites atop rocket technologies borrowed from China's national space programs is simply a way into the market. OneSpace plans to eventually develop a manned space capsule, and Landspace is reportedly mulling a far more powerful, liquid-fueled rocket that could compete directly with the likes of SpaceX, Blue Origin or France's Arianespace.

A private-sector push

The emergence of these and other start-ups underscores a move by China to capitalize on its growing space prowess and to drive at least some of the industry's investment and innovation outside of traditional government programs. Where rockets are concerned, fostering a commercial launch industry will allow Chinese companies to market rocket technology commercially to foreign customers without running afoul of international norms and agreements that deter governments from doing that kind of business. But it will also allow companies to tinker and, ideally, improve upon government designs.

Beyond rocket hardware, China is also reportedly mulling a major boost in spending on space science programs that will challenge Chinese firms to develop new materials, sensors and other technologies. The current five-year plan (running through 2020) already calls for five major space exploration projects. These include a dark matter-seeking satellite that launched in December 2015 and an experimental quantum communications satellite that launched last year that could lead to significant breakthroughs in communications and cryptography. An ongoing build-out of geolocation and Earth observation satellites is also providing China with vast reserves of the currency that information technology companies trade in: data.

"These programs are part of a comprehensive, deliberate, long-term strategic vision for economic and societal transformation," says Dr. Alanna Krolikowski, a post-doctoral research fellow at the China Institute at the University of Alberta. "What's needed is actually new drivers of growth, and those have to come from services, from innovation, from essentially becoming an economy that's more similar to an advanced industrialized economy."

Chinas_latest_manned_space_capsule_docked_with_T.jpg

In this TV grab, Chinas latest manned space capsule docked with the lab,
the Tiangong-1 in space, 13 June 2013. (Imaginechina via AP Images)

By building out its network of BeiDou satellites — China's equivalent of GPS — and Earth-imaging satellites like those in its Gaofen constellation, China can generate the kinds of data that companies can turn into high-tech service enterprises. In the United States, companies like Planet Labs, Digital Globe, Spaceknow, and Orbital Insights have generated novel — and in some cases quite lucrative — methods for generating and processing satellite imagery into meaningful data they can then sell to companies around the world. Through its own investments, China could likewise become a provider of similar information, though it's unclear how much freedom of innovation companies will have with the Chinese government acting as the central clearinghouse for satellite data.

"There is a real vision for making the fundamental infrastructure investments in the satellite constellations themselves," Krolikowski says. "Those investments are justified in terms of their downstream impact on the economy and what they're going to do for upgrading the scientific, technological and industrial base in China — what they're going to do to foster that transition toward an innovation economy that the government emphasizes."

China expands its footprint

While its space industry is a part of China's vision for economic transition, it is only one component, Lewis says. Much of Beijing's desire for economic transition has manifested itself in massive investments in more traditional technology industries, like semiconductors, into which the government is pouring $150 billion to boost China's domestic chip production (a move that has drawn the ire of both the Obama and Trump administrations).

Budget disparities aside, many U.S.-based analysts have expressed concern that NASA is reining in its ambitions as China expands its footprint in orbit and beyond.

But that could change if President Trump decides to reenergize NASA and shift its priorities. Already he has expressed interest in trying to create a "Kennedy moment" again.

— By Clay Dillow, special to CNBC.com
 
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China's cargo spacecraft completes in-orbit refueling
Source: Xinhua| 2017-04-27 23:24:48|Editor: An

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Working staff celebrate at the control center in Beijing, capital of China, April 27, 2017. China's Tianzhou-1 cargo spacecraft and Tiangong-2 space lab completed their first in-orbit refueling at 7:07 p.m. Thursday, another success of the Tianzhou-1 mission. (Xinhua/Ju Zhenhua)

BEIJING, April 27 (Xinhua) -- China's Tianzhou-1 cargo spacecraft and Tiangong-2 space lab completed their first in-orbit refueling at 7:07 p.m. Thursday, another success of the Tianzhou-1 mission.

Mastering the technique of refueling in space will help the country to build a permanent space station.

China is the third country, besides Russia and the United States, to master refueling in space.

The in-orbit refueling, under control of technicians on Earth, takes about five days, as the propellant is transmitted from the cargo spacecraft to the space lab.

A second refueling in space will be conducted after the cargo ship's second docking with the space lab in June, which aims to test the ability of the cargo ship to dock with the space station from different directions.

In the last docking, Tianzhou-1 will use fast-docking technology. Previously, it took China about two days to dock, while fast docking will take about six hours, according to Bai Mingsheng, chief designer of the cargo ship.

Tianzhou-1, China's first cargo spacecraft, was launched on April 20 from Wenchang Space Launch Center in south China's Hainan Province.

It completed its first automated docking with the orbiting Tiangong-2 space lab on April 22.

The Central Military Commission (CMC) sent a congratulatory letter to the staff of China's manned space program on the success of the Tianzhou-1 mission, speaking highly of the contributions they have made to the country's space industry.

"It means a lot in realizing our unremitting space dream, and will inspire us to break new ground," the CMC said in the letter.

In 1992, the central authority approved a three-step manned space program, with the final step marking the ability to operate a permanent manned space station, which is planned to be put into orbit around 2022.

As the International Space Station is set to retire in 2024, the Chinese space station will offer a promising alternative, and China will be the only country with a permanent space station.
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Photo taken on April 27, 2017 shows the control center in Beijing, capital of China. China's Tianzhou-1 cargo spacecraft and Tiangong-2 space lab completed their first in-orbit refueling at 7:07 p.m. Thursday, another success of the Tianzhou-1 mission. (Xinhua/Ju Zhenhua)

 
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Tianzhou-1 to complete first propellant refueling mission - CGTN (Eng)


Earlier video - the moment of docking
China's first cargo spacecraft Tianzhou-1 docks with Tiangong-2 space lab - Xinhua TV (Eng)
 
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China to begin construction of manned space station in 2019

China will begin construction of a permanent manned space station in 2019 after carrying out a successful in-orbit refueling from its Tianzhou-1 cargo spacecraft, officials leading the project said on Friday.

The Tianzhou-1, China's first cargo spacecraft, launched on April 20 and completed the first of three planned docking attempts with the orbiting Tiangong-2 spacelab two days later, state media reported.

The successful five-day refueling, directed from technicians on Earth and completed on Thursday, is a key milestone toward China's plans to begin sending crews to a permanent space station by 2022.

"This again announces the ambition and aspiration of the great rejuvenation of the Chinese people, and our resolute confidence in becoming a major space power," the space station project's supervisor Wang Zhaoyao told a news briefing in Beijing.

"After completing experimental stage spaceflight missions, we will enter the development and construction phase. According to our plans we will carry out the assembly and construction of China's manned space station between 2019 and 2022."

President Xi Jinping has prioritized advancing China's space program to strengthen national security. The Central Military Commission, chaired by Xi, sent a letter congratulating staff of the Tianzhou-1 mission for "realizing our unremitting space dream", according to the official Xinhua news agency.

The U.S. Defense Department has highlighted China's increasing space capabilities, saying it was pursuing activities aimed at preventing other nations from using space-based assets in a crisis.

China insists it has only peaceful ambitions in space, but has tested anti-satellite missiles.



(Reporting by Philip Wen; Editing by SImon Cameron-Moore)

http://mobile.reuters.com/article/idUSKBN17U0GG
 
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Long March 9 Heavy Carrier Rocket (CZ-9): Approximately to achieve the maiden flight in 2028
长征九号重型运载火箭(CZ-9):2028年左右实现首飞 - China Spaceflight

时间: 2017-03-12分类: 长征九号CZ-9
https://www.chinaspaceflight.com/bbs/viewtopic.php?f=3&t=71

2017.03.06

谭永华透露,在航天六院科研专家们的努力下,长征九号运载火箭的研制已经取得了突破性进展。目前已进行了70%左右的组件试验,用行话说,发生器和涡轮泵联试取得了圆满的成功,为后续工程的研制奠定了坚实的基础,长征九号估计在2028年左右可以上天。

1489329361578333.jpg

2017.03.05

谭永华介绍,480吨级发动机是我国设计的全新火箭发动机,性能指标瞄准国际先进水平。其与目前长征五号运载火箭所用的120吨级发动机相比,工作原理相同,但推力跨度很大,为设计、生产、制造、试验带来了新的挑战。480吨级发动机将用作长征九号运载火箭的捆绑助推器和芯一级动力,同时在研的220吨级氢氧发动机将用于芯二级动力。

重型运载火箭:2018年底开展发动机整机试验

  中国的重型运载火箭研制已被纳入“十三五”国家科技创新规划,并获国家正式批复立项。火箭研制工作已取得阶段性成果,比如已完成大直径铝合金整体锻造环框的研制工作。
  全国人大代表、中国航天科技集团科技委副主任谭永华介绍,用于重型运载火箭捆绑助推器和芯一级动力的480吨级发动机推力液氧煤油,取得突破性进展:已完成首次燃气发生器—涡轮泵联动试验,今年将开展第二次联动试验,计划在2018年年底开展发动机整机试验。
  重型运载火箭箭体直径近10米,全箭总长近百米。火箭运载能力是现有火箭运载能力的5倍多,超过美国正在研制的下一代运载火箭(SLS)


2017.03.02

我国重型火箭先期关键技术攻关、方案深化论证工作于2016年6月正式批复立项,主要的攻关内容为“一总三大”:一总即重型火箭的总体技术和方案优化;三大即10米级大直径箭体结构的设计、制造和试验,480吨大推力的液氧煤油发动机,220吨大推力的氢氧发动机。

  目前,两种大推力发动机的攻关进展顺利。谭永华说,480吨级液氧煤油发动机已经完成了首次发生器-涡轮泵联试,试验达到了预期目的,通过试验验证了发动机系统和组件方案的可行性,标志着480吨液氧煤油发动机研制关键技术攻关取得突破性进展。而220吨级高性能氢氧发动机也已完成了多个组件方案详细设计,进行了组件的研制试验工作。


CZ-9火箭为三级半构型,芯级最大直径10 m级,LEO运载能力140 t,LTO运载能力50 t。CZ-9火箭是完成深空探测、载人登月和登火、空间基础设施建设(如空间太阳能电站)等任务的重要支撑[5],将加速航天强国建设步伐。CZ-9火箭采用“通用化、系列化、组合化”发展策略,三个构型的对应结构状态相同,可模块化组合。可捆绑液体助推器,也可以捆绑固体助推器。

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China Daily English Edition 中国日报英文版 2016.03.10

New engines to lift super-heavy rocket

Chinese rocket engine designers have started to develop next-generation engines that will propel the nation's future super-heavy rocket, which is tentatively called Long March 9, according to a senior rocket scientist.

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"Engineers at my academy are researching and developing a 500-ton-thrust liquid oxygen/kerosene engine and a 200-ton-thrust liquid oxygen/liquid hydrogen engine that will be used on the future heavy-lift rocket," Tan Yonghua, president of the Academy of Aerospace Propulsion Technology and a national lawmaker, told China Daily on the sidelines of the annual session of the top legislature.

The engines will together give the Long March 9 a launch weight of 3,000 tons and a maximum payload of 130 tons to the low Earth orbit, which is powerful enough to fulfill a manned mission to the moon, he said.

Success of the country's Mars exploration programs, which have been approved by the government, and other deep-space projects will also depend on the new rocket because existing ones, including the Long March 5, are not powerful enough, according to Tan.

Long March 9 is set to be as technologically advanced as the United States' Space Launch System, which is being designed by the National Aeronautics and Space Administration, and it will be pollution-free, the scientist added.

Tan said the new engines will be based on those used on the Long March 5, which will be launched for the first time in the fall, and that their development will take about 10 years.

Liang Xiaohong, former deputy head of the China Academy of Launch Vehicle Technology and a political adviser, told China Daily that the Long March 9's core body will have a diameter of nearly 10 meters and a height of more than 100 m. The rocket's development is expected to take 15 years, he added.

Liang's academy recently developed a super-large interstage ring that will be used to connect stages of the Long March 9.

In another development, Tan said the Academy of Aerospace Propulsion Technology will soon deliver engines to be installed on the Chang'e 5 probe, the third step of China's unmanned lunar exploration effort to land on the moon and bring back soil in about 2017.

China is even eyeing the possibility of operating a space solar power station between Earth and the moon. Lieutenant General Zhang Yulin, deputy head of the Central Military Commission's Equipment Development Department, told Xinhua News Agency on Monday that China is making a blueprint for the construction of a solar power station.

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https://www.chinaspaceflight.com/rocket/Heavy-Lift-Launch-Vehicle/Heavy-Lift-Launch-Vehicle.html

it's going to be interesting to see this rocket along with the super launch system of the U.S- SLS,ITS, Russia-????, India, ????- China-CZ-9 launching in the 2020's and 2030's

space is the next frontier for the world economy.
 
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it's going to be interesting to see this rocket along with the super launch system of the U.S- SLS,ITS, Russia-????, India, ????- China-CZ-9 launching in the 2020's and 2030's

space is the next frontier for the world economy.
India? They couldn't even send their own 4t communication satellites by themselves today, u talk about 140 t march 9? Are u becoming big mouth 2012 stupa powa Indians?
 
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India? They couldn't even send their own 4t communication satellites by themselves today, u talk about 140 t march 9? Are u becoming big mouth 2012 stupa powa Indians?

Maximum working rocket with China is march 9 with 14 t to GEO , NOT 140 .
India has a working rocket of 2.5 t to GEO.
Next month mark3 will be launched for 1st time with capacity of 4 to 5 t to GEO.
 
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Construction of manned space station starts 2019

By Xinhua News, Friday, April 28, 2017, 17:32

BEIJING - China will begin construction of a permanent manned space station in 2019 after carrying out a successful in-orbit refuelling from its Tianzhou-1 cargo spacecraft, officials leading the project said on Friday.

The_Future_Chinese_Space_Station.jpg

The future manned space station of China

China plans to conduct several manned space flights between 2019 and 2022, during which time the 60-tonne space station will be assembled and built, said Wang Zhaoyao, director of China's manned space program office, Friday.

"Tianzhou-1, China's first cargo spacecraft, was the last flight mission of the country's manned space program before the construction of a permanent space station," Wang said at a press conference.

The spacecraft and Tiangong-2 space lab completed their first in-orbit refueling late Thursday, marking the completion of the country's space lab mission. The successful five-day refuelling, directed from technicians on Earth and completed on Thursday, is a key milestone toward China's plans to begin sending crews to a permanent space station by 2022.

"The successful conclusion of the mission shows that China's manned space program has entered the space station era," Wang said.

"The space station program has been progressing steadily with its key technologies and plans already completed and its relevant flight products being tested," he said. "Chinese astronauts are preparing for the space station era. They are expected to stay in space for three to six months or even longer during future missions."

Two astronauts, Jing Haipeng and Chen Dong, completed their 33-day journey, the longest mission in the country's manned space program to date, onboard the Shenzhou-11 spacecraft on Nov. 18 last year.

The space station project's supervisor Wang Zhaoyao announced this Friday at a news briefing in Beijing

Wang said the astronauts would be engaged in more extra-vehicular activities during the construction of the space station, which could pose challenges.

"After completing experimental stage spaceflight missions, we will enter the development and construction phase. According to our plans we will carry out the assembly and construction of China's manned space station between 2019 and 2022," Wang said.

President Xi Jinping has prioritised advancing China's space program to strengthen national security. The Central Military Commission, chaired by Xi, sent a letter congratulating staff of the Tianzhou-1 mission for "realising our unremitting space dream", according to the official Xinhua news agency.
 
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