---
title: "China Aerospace Science and Technology Corporation: The State-Owned Giant Behind a Space Superpower"
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published: "2025-07-31T04:00:00+00:00"
modified: "2025-11-28T01:41:08+00:00"
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description: "The China Aerospace Science and Technology Corporation (CASC) is the dominant force in China’s space endeavors. As the main contractor for the Chinese space…"
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  - "Editor’s Picks"
  - "Space Economy"
  - "Space Technology"
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  - "China Aerospace Science and Technology Corporation"
  - "China Space Program"
  - "Long March Rockets"
  - "Navigation Systems"
  - "Tiangong Space Station"
---

# China Aerospace Science and Technology Corporation: The State-Owned Giant Behind a Space Superpower

![](https://i0.wp.com/newspaceeconomy.ca/wp-content/uploads/2025/07/a73dae11-2407-48c5-bf1d-af7641df87f8.png?resize=696%2C464&ssl=1)

## An Introduction to China’s Aerospace Prime Contractor

The [China Aerospace Science and Technology Corporation](http://www.spacechina.com/) ([CASC](http://www.spacechina.com/)) is the dominant force in China’s space endeavors. As the main contractor for the Chinese space program, this sprawling state-owned enterprise is responsible for the research, design, manufacture, and launch of nearly every piece of hardware the country sends to orbit and beyond. Its portfolio is immense, covering the Long March family of rockets, a vast array of satellites, the Shenzhou crewed spacecraft, and the Tiangong space station. CASC’s reach extends from low Earth orbit to the Moon and Mars, and its operations are vertically integrated, managing the entire lifecycle of a space mission from the drawing board to the launch pad.

Beyond its civilian space activities, CASC is also a primary defense contractor, developing and producing China’s strategic and tactical missile systems. This dual-purpose nature is not an accident but a core element of the country’s national strategy of “military-civil fusion.” This approach ensures that technological breakthroughs in one area, such as advanced guidance systems for a lunar lander, can be seamlessly applied to the other, like improving the accuracy of a ballistic missile. This creates a powerful feedback loop where national prestige projects in space exploration directly bolster military capabilities, and defense research fuels advancements in space technology. This integrated model stands in contrast to the structure in the United States, where a civilian agency like [NASA](https://www.nasa.gov/) is distinctly separate from military contractors and the Department of Defense. For CASC, every major space achievement carries inherent national security implications, making it a pivotal instrument of state policy. With a workforce of over 170,000 people spread across dozens of subsidiaries, CASC is one of the largest and most influential aerospace conglomerates in the world.

## Corporate Origins and Structure

### From Missile Institute to Aerospace Conglomerate

The story of CASC is intertwined with the history of the People’s Republic of China itself. Its origins lie in the Cold War, tracing back to October 8, 1956, with the creation of the Fifth Academy of the Ministry of National Defense. This institution was established with a singular focus: to develop China’s own ballistic missiles. A pivotal figure in its founding was Qian Xuesen, a brilliant rocketry scientist who had returned to China from the United States and is now widely regarded as the father of the Chinese space program.

Over the next four decades, this foundational organization underwent a series of transformations, being restructured and renamed as it was absorbed into different government bodies. It was known sequentially as the Seventh Ministry of Machinery Industry, the Ministry of Space Industry, the Ministry of Aerospace Industry, and finally the China Aerospace Corporation. This evolution reflected the expanding scope of its work, from purely military rocketry to the development of satellites and other space systems.

A defining moment came on July 1, 1999. As part of a sweeping government reform aimed at increasing efficiency and fostering specialization, the China Aerospace Corporation was split into two separate entities. The China Aerospace Science and Technology Corporation (CASC) was formed to focus on space systems, launch vehicles, and strategic missiles. Its sibling, the [China Aerospace Science and Industry Corporation](http://english.casic.cn/) ([CASIC](http://english.casic.cn/)), was tasked with developing air defense systems, cruise missiles, and other defense technologies. This formal establishment marked the birth of CASC in its modern form.

### The Anatomy of a State-Owned Behemoth

CASC is not a private company; it’s a wholly state-owned enterprise. Its sole shareholder and ultimate authority is the State-owned Assets Supervision and Administration Commission of the State Council (SASAC), the government body that manages China’s largest state-run corporations. This direct line of control ensures that CASC’s activities are always aligned with the nation’s overarching strategic, economic, and military objectives.

The corporation is a massive, complex network of research academies, specialized commercial subsidiaries, and publicly listed companies. While its headquarters is in Beijing, its research, development, and manufacturing facilities are spread across the country, with major hubs in industrial powerhouses like Shanghai, Tianjin, Xi’an, and Chengdu. This decentralized yet centrally controlled structure allows CASC to tap into regional expertise while maintaining tight coordination on national-level projects. The 1999 split that created CASC and CASIC established a unique, state-managed system of “co-opetition.” While both are government-owned and work towards national goals, they operate in distinct, sometimes overlapping, domains. This fosters a degree of internal competition that spurs innovation and efficiency, preventing the stagnation that could arise from a single, monolithic aerospace entity. It’s a managed market dynamic within a state-controlled framework, designed to maximize technological output and accelerate China’s rise as a superpower.

### The Core Academies

The operational heart of CASC is its collection of research and production complexes, known as “academies.” These are not academic institutions in the Western sense but vast industrial centers, each a leader in a specific technological field.

- **China Academy of Launch Vehicle Technology (CALT):** Headquartered in Beijing, CALT is the cradle of China’s rocket program. It serves as the primary designer and manufacturer of the iconic Long March family of rockets. CALT is responsible for the development of the heavy-lift launchers for deep space missions, the human-rated rockets for crewed flights, and many of the boosters used for satellite deployment.
- **China Academy of Space Technology (CAST):** If CALT builds the ride to space, CAST builds what goes on top. It is China’s premier developer of spacecraft. CAST’s engineers design and construct a wide range of satellites, the Shenzhou that carries taikonauts into orbit, the Chang’e lunar landers, and the Tianwen-1 probe that successfully reached Mars.
- **Shanghai Academy of Spaceflight Technology (SAST):** A powerhouse in its own right, SAST is a major CASC subsidiary with broad capabilities. It develops and builds several models of the Long March rocket, including the Long March 2D, Long March 4, and Long March 6. It also produces a variety of satellites, solar arrays, and key components for the crewed space program, including the service module for the Shenzhou spacecraft and the lunar rovers.

Other vital components of the CASC ecosystem include the Academy of Aerospace Liquid Propulsion Technology (AALPT) and the Academy of Aerospace Solid Propulsion Technology (AASPT), which focus on developing the powerful and sophisticated engines that propel China’s rockets.

## The Workhorse Fleet: Long March Rockets

### A Legacy of Launch

The Long March rocket family is the indispensable backbone of China’s access to space. Named in honor of the grueling military retreat undertaken by the Chinese Red Army during the Chinese Civil War, these rockets are a symbol of national perseverance and technological ambition. The journey began on April 24, 1970, when a Long March 1 rocket successfully placed China’s first satellite, Dong Fang Hong 1, into orbit. The launch made China only the fifth nation in the world to achieve independent spaceflight capability, a moment of immense national pride.

For decades, the early generations of Long March rockets—including the Long March 2, 3, and 4 series—relied on hypergolic propellants. These fuels, such as unsymmetrical dimethylhydrazine (UDMH) and dinitrogen tetroxide (N2O4), ignite on contact, making for a relatively simple and reliable engine design. However, they are also highly toxic and corrosive, posing significant safety and environmental risks. The program faced a difficult period in the 1990s with a series of high-profile launch failures, including one that resulted in a rocket crashing into a nearby village. These incidents, coupled with allegations of technology transfer, led the United States to impose an embargo that effectively banned American-made satellites from launching on Chinese rockets, a restriction that remains in place.

### The New Generation of Launchers

To overcome the limitations of its older fleet and power its 21st-century ambitions, CASC developed a new generation of Long March rockets. These modern vehicles have moved away from toxic hypergolic fuels, instead using more efficient and environmentally friendly propellants like liquid oxygen (LOX), kerosene (RP-1), and liquid hydrogen (LH2). This new fleet is modular and versatile, designed to meet the demands of a diverse range of missions.

- **Long March 5:** This is China’s heavy-lift champion. The Long March 5 is essential for the country’s most ambitious projects, powerful enough to launch the massive modules of the Tiangong space station, send robotic probes to the Moon, and dispatch missions to Mars. It can carry a payload of approximately 25,000 kg to Low Earth Orbit (LEO) and 14,000 kg to the more distant Geostationary Transfer Orbit (GTO).
- **Long March 7:** As the workhorse for China’s space station logistics, this medium-lift rocket is primarily used to launch the Tianzhou automated cargo spacecraft, delivering tons of supplies, experiments, and fuel to the orbiting outpost.
- **Long March 6:** A light-lift rocket designed for speed and flexibility. The Long March 6 is optimized for launching constellations of small satellites into Sun-synchronous orbits, serving the booming commercial satellite market.
- **Long March 11:** This four-stage rocket uses solid-fuel motors, which allows for minimal launch preparation. It can be launched from a mobile land-based transporter or from a sea platform, providing China with a highly responsive and versatile launch capability.
- **Long March 12:** A new medium-lift rocket currently under development by SAST. It is designed specifically to launch satellites for China’s planned low-Earth orbit internet mega-constellation, a project similar to [SpaceX](https://www.spacex.com/)’s [Starlink](https://www.starlink.com/).

The transition away from toxic fuels and inland launch sites was a critical strategic move. The older hypergolic rockets were launched from facilities deep within the country’s interior, meaning their spent booster stages would often fall back to Earth over inhabited areas, creating a significant safety hazard. This practice was not sustainable for a program planning a high frequency of launches. The new-generation rockets, using cleaner propellants, are launched from the coastal Wenchang Space Launch Site, where debris can fall harmlessly into the ocean. This fundamental shift was necessary to enable the scale and pace of China’s modern space ambitions, from building a space station to deploying vast satellite networks.

### The Pursuit of Reusability

Following the disruptive success of private companies like [SpaceX](https://www.spacex.com/), CASC is aggressively pursuing reusable rocket technology to drive down launch costs and increase flight frequency. The Long March 8 was designed with a reusable first stage in mind, and CASC has successfully conducted several “hop tests”—short flights to test vertical takeoff and vertical landing (VTVL) capabilities.

The focus now is on the next generation of super-heavy rockets. The Long March 10, a human-rated launcher being developed for China’s crewed lunar program, will feature a reusable first stage. CASC has even shown animations of a novel recovery method, where the returning booster is caught by a system of arresting wires on a sea platform, a different approach from the landing legs used by [SpaceX](https://www.spacex.com/). The ultimate goal is ambitious: CASC plans to make its entire Long March fleet reusable by 2035, a move that would fundamentally reshape the economics of its space program and solidify its competitive position on the world stage.

## A Permanent Foothold in Orbit: The Tiangong Space Station

### Building the “Heavenly Palace”

CASC served as the prime contractor for one of China’s most visible and significant achievements: the Tiangong space station, or “Heavenly Palace.” This modular, long-term orbital outpost represents the culmination of a three-decade-long human spaceflight program. Assembled in low Earth orbit with remarkable speed between 2021 and 2022, the station is a testament to CASC’s engineering and project management capabilities.

The station’s current configuration is a T-shape, formed by three primary modules. The *Tianhe* (“Harmony of the Heavens”) is the core module, providing the main living quarters, life support systems, and command and control functions for the entire station. Docked to either side of Tianhe are two laboratory modules: *Wentian*(“Quest for the Heavens”) and *Mengtian* (“Dreaming of the Heavens”). These labs are equipped with dozens of science racks and external attachment points, hosting a wide range of experiments in fields from materials science and fluid physics to life sciences and fundamental research. The modules were launched into orbit by CASC’s powerful Long March 5B rockets. While Tiangong is significantly smaller than the International Space Station (ISS)—about one-fifth the mass—it is a modern, state-of-the-art facility built and operated entirely by one nation.

### Sustaining Life and Work in Space

Keeping the Tiangong space station operational and productive requires a dedicated logistics chain, all of which is designed and built by CASC. Two key spacecraft are essential to this effort.

The Shenzhou (“Divine Vessel”) is China’s crew transportation vehicle. Based loosely on the design of the Russian Soyuz, the Shenzhou has been extensively modernized and is capable of carrying three astronauts, known as “taikonauts,” on missions that typically last for six months. These crewed flights are launched by the Long March 2F, a CASC rocket with an impeccable safety record that has been human-rated for these critical missions.

Resupply missions are handled by the Tianzhou (“Heavenly Vessel”) cargo freighter. This uncrewed, automated spacecraft is a robotic workhorse, delivering tons of food, water, scientific equipment, and propellant to the station. Tianzhou missions are launched aboard the medium-lift Long March 7 rocket. Thanks to this reliable system of crew rotation and cargo delivery, China has maintained a continuous human presence aboard the Tiangong station since June 2022.

### Tiangong vs. International Space Station (ISS): A Comparative Overview

To understand Tiangong’s place in the world, it’s helpful to compare it directly with the International Space Station. The following table provides an at-a-glance look at the key differences and similarities between the two orbital outposts.

| Feature | Tiangong Space Station | International Space Station (ISS) |
| --- | --- | --- |
| **Operator(s)** | [China Manned Space Agency](http://en.cmse.gov.cn/.) (CMSA) | [NASA](https://www.nasa.gov/) (USA), Roscosmos (Russia), [ESA](https://www.esa.int/) (Europe), JAXA (Japan), [CSA](https://www.asc-csa.gc.ca/eng/) (Canada) |
| **Total Mass** | ~100 metric tons (with visiting craft) | ~450 metric tons |
| **Pressurized Volume** | ~340 cubic meters | ~916 cubic meters |
| **Number of Modules** | 3 (expandable to 6) | 16 |
| **Nominal Crew Size** | 3 (can support 6 during handovers) | 7 |
| **Operational Altitude** | 340–450 km | ~420 km |
| **First Module Launch** | 2021 | 1998 |

## Exploring the Moon and Beyond

### The Chang’e Lunar Program

CASC is the driving force behind the Chinese Lunar Exploration Program (CLEP), a series of robotic missions named after the Chinese moon goddess, Chang’e. The program is a model of strategic patience and execution, unfolding in four distinct phases, with each success building methodically on the last. CASC’s academies designed and built both the robotic probes and the Long March rockets that launched them.

- **Phase 1: Orbiting the Moon.** This initial phase was about getting there. Chang’e 1 (launched in 2007) and Chang’e 2 (2010) successfully entered lunar orbit, creating detailed 3D maps of the surface and surveying its composition.
- **Phase 2: Landing and Roving.** The next step was to touch down. In 2013, Chang’e 3 achieved China’s first soft landing on the Moon, deploying the *Yutu* rover. In a landmark achievement, Chang’e 4 made the first-ever soft landing on the far side of the Moon in 2019, an area that had never before been explored on the surface.
- **Phase 3: Sample Return.** This phase demonstrated China’s ability to bring pieces of the Moon back to Earth. In 2020, Chang’e 5 collected and returned lunar soil and rocks, the first such mission by any country in over 40 years. Building on this, Chang’e 6 accomplished another historic first in 2024 by returning samples from the Moon’s far side.
- **Phase 4: Robotic Research Station.** The program’s current phase is focused on laying the groundwork for a permanent human presence. The upcoming Chang’e 7 and Chang’e 8 missions will survey the Moon’s south pole, search for water ice, and test technologies for using local resources, such as [3D printing](https://newspaceeconomy.ca/2025/08/18/additive-manufacturing-and-space-exploration/) structures from lunar dust.

### The Tianwen Interplanetary Missions

CASC’s capabilities extend beyond the Earth-Moon system. The company builds the hardware for China’s ambitious interplanetary exploration program, named the Tianwen (“Questions to Heaven”) series. Its inaugural mission, Tianwen-1, launched in 2020, was a bold statement of intent. In a single mission, China successfully sent a spacecraft to Mars that consisted of an orbiter, a lander, and a rover. No other nation had ever accomplished all three of these objectives on its first attempt. The mission successfully placed the *Zhurong rover* on the Martian surface, making China only the second country to operate a rover there. Future CASC-built missions are already planned, including Tianwen-2, which will collect samples from a near-Earth asteroid, and Tianwen-3, which will attempt to bring back samples from Mars.

The strategy behind these deep space missions is clear. By achieving a series of unprecedented “world firsts”—the far-side landing, the far-side sample return, the all-in-one Mars mission—CASC enables China to do more than just catch up in space. These accomplishments are powerful demonstrations of technological leadership and national prestige. They allow China to craft a narrative of pioneering innovation, which in turn builds soft power and attracts international partners for its future, more ambitious projects, such as the International Lunar Research Station. This positions China as a credible leader and a viable alternative to US-led space initiatives.

## The Global Infrastructure: Satellites and Ground Network

### Beidou: A Global Navigation System

CASC is the prime contractor for the Beidou Navigation Satellite System (BDS), China’s answer to the American Global Positioning System (GPS). Developed systematically in three phases, Beidou is a fully independent global satellite navigation system (GNSS) that provides positioning, navigation, and timing (PNT) services to users worldwide.

One of Beidou’s defining features is its unique hybrid constellation of satellites. Unlike GPS, which relies solely on satellites in Medium Earth Orbit (MEO), Beidou also includes satellites in Geostationary Orbit (GEO) and Inclined Geosynchronous Orbit (IGSO). This design gives the system enhanced accuracy and reliability, particularly in the Asia-Pacific region. Beidou is a cornerstone of China’s national infrastructure, with critical applications for both the civilian economy—in transportation, agriculture, and telecommunications—and for national security, providing precise guidance for military assets.

### Gaofen: A Watchful Eye on Earth

CASC is also the manufacturer of the satellites for the Gaofen (“high resolution”) program. This is a constellation of sophisticated Earth-observation satellites that form the space-based segment of the China High-resolution Earth Observation System (CHEOS). The Gaofen satellites provide a constant stream of high-quality imagery and data used for a wide range of civilian purposes, including environmental protection, monitoring land use, surveying natural resources, disaster relief, and agricultural planning.

The constellation is equipped with a diverse array of sensors. These include high-resolution optical cameras for detailed imaging, hyperspectral sensors that can identify different materials on the ground, and synthetic aperture radar (SAR) instruments that can see through clouds and darkness. This all-weather, day-and-night observation capability makes the Gaofen system a powerful tool for managing the country’s resources and responding to emergencies.

### China’s Gateways to Space

CASC’s frequent launches are made possible by a network of four specialized spaceports, each strategically located to support different types of missions. This ground infrastructure is just as important as the rockets themselves.

- **Jiuquan Satellite Launch Center:** Located in the vast Gobi Desert, Jiuquan is China’s oldest and largest spaceport. It is the exclusive launch site for all of China’s crewed missions aboard the Shenzhou spacecraft and is used for launching satellites into low and medium Earth orbits.
- **Taiyuan Satellite Launch Center:** Situated in a mountainous region of northern China, Taiyuan’s geography makes it ideal for launching satellites into Sun-synchronous orbits (SSO). This is the preferred launch site for many of the Gaofen Earth-observation satellites and meteorological satellites.
- **Xichang Satellite Launch Center:** Located in a hilly region of southern China, Xichang specializes in sending satellites to the high-altitude Geostationary Transfer Orbit (GTO). This is the primary launch site for communications satellites and many of the Beidou navigation satellites.
- **Wenchang Space Launch Site:** China’s newest and most modern spaceport, located on the coast of the southern island of Hainan. Its low latitude, close to the equator, gives rockets an extra boost from the Earth’s rotation. This makes Wenchang the optimal site for heavy-lift launches, saving fuel and maximizing the payload that can be sent to the space station, the Moon, and other planets.

### Comparison of China’s Space Launch Centers

The distinct roles of China’s four primary launch centers are dictated by their geography, which determines the most efficient trajectories for different orbits. This table summarizes their key characteristics.

| Launch Center | Location | Established | Primary Mission Types |
| --- | --- | --- | --- |
| **Jiuquan** | Gansu / Inner Mongolia | 1958 | Low Earth Orbit (LEO), Crewed Missions, Recoverable Satellites |
| **Taiyuan** | Shanxi Province | 1967 | Sun-Synchronous Orbit (SSO), Polar Orbits, Weather Satellites |
| **Xichang** | Sichuan Province | 1970 | Geostationary Transfer Orbit (GTO), Communications Satellites |
| **Wenchang** | Hainan Province | 2014 | Heavy-Lift, Space Station Modules, Lunar & Interplanetary Probes |

## Future Horizons and Global Standing

### The International Lunar Research Station

CASC is now developing the hardware for what is arguably China’s most ambitious undertaking to date: the International Lunar Research Station (ILRS). This project envisions a permanent, initially robotic and eventually crewed, scientific base located at the Moon’s south pole. The ILRS is a joint initiative with Russia’s Roscosmos and is being promoted as an open platform for other international partners to join. This explicitly positions it as a geopolitical and scientific alternative to the U.S.-led Artemis program.

The construction plan is phased, with a basic robotic station to be completed by 2035, followed by an expanded, more capable facility by 2045. Realizing this vision will depend on a new generation of super heavy-lift rockets. CASC is developing the Long March 9 for this purpose, a massive rocket designed to launch the large habitats and infrastructure needed for a lunar base. In the nearer term, China is targeting its first crewed lunar landing for 2030, which will be launched by the reusable Long March 10 rocket.

### A New Space Race

The rapid pace of CASC’s development has firmly established China as a first-tier space power. In terms of annual launch activity, it is consistently one of the most active nations, often second only to the United States. In 2023, for instance, CASC conducted 45 orbital launches, a figure surpassed only by the 96 launches from the private American company SpaceX. This far outpaced the 18 launches from Russia’s Roscosmos.

Direct budget comparisons are challenging. China’s official space budget is estimated to be around $14 billion annually, significantly less than [NASA](https://www.nasa.gov/)’s budget of roughly $25 billion. However, it’s widely understood that CASC’s funding is heavily supplemented by China’s opaque defense budget, making the true level of investment much higher. The technological trajectory is undeniable. CASC’s progress in deep space exploration, satellite technology, and especially its accelerated development of reusable rockets, places it in direct competition with both government agencies like NASA and commercial leaders like SpaceX. The formal partnership with Russia on the ILRS signals a broader geopolitical realignment in space, creating a distinct bloc to rival the coalition of nations participating in the U.S.-led Artemis Accords.

The evolution of CASC’s rocket designs reveals a great deal about its long-term strategy. The initial concepts for the Long March 9 depicted a massive, expendable rocket, similar in philosophy to NASA’s Space Launch System—a traditional, state-funded approach to exploration. However, more recent designs show a dramatic pivot to a fully reusable, two-stage rocket powered by modern methane engines, a concept much closer to SpaceX’s Starship. This is more than just a technical update; it shows that CASC recognizes that the economics of space have fundamentally changed. A sustainable, long-term presence on the Moon and Mars is only feasible with low-cost, reusable launch vehicles. The development of the reusable Long March 10 and 9 rockets is the single most important enabler for China’s future in space. Their success will determine the pace and scale of the country’s entire deep space agenda for decades to come.

## Summary

The China Aerospace Science and Technology Corporation has evolved from a secretive missile development institute into a full-spectrum aerospace powerhouse. It stands as the primary engine of China’s space program, a state-owned and state-directed giant that has methodically executed a long-term strategy to become a global leader in space. CASC’s fingerprints are on every major Chinese space achievement, from the reliable Long March rockets and the global Beidou navigation network to the Tiangong space station and the groundbreaking Chang’e and Tianwen missions to the Moon and Mars.

Today, CASC is not merely following the path forged by other space powers; it is charting its own course. With ambitious plans for a lunar base, reusable super-heavy rockets, and further interplanetary exploration, the corporation is at the forefront of a new era in space. Its integrated civil-military structure, vast resources, and unwavering state support make it a formidable player in the 21st-century geopolitical and technological landscape, ensuring that the future of humanity in space will be shaped not just in Houston and Cape Canaveral, but also in Beijing, Wenchang, and Jiuquan.

## What Questions Does This Article Answer

- What is the role of the China Aerospace Science and Technology Corporation (CASC) in China’s space endeavors?
- How does CASC benefit from China’s national strategy of “military-civil fusion”?
- What transformations has CASC undergone since its establishment?
- What are the core academies within CASC and what are their functions?
- How does the Long March rocket family fit into China’s space program?
- What are the latest advancements in the Long March rocket family?
- What significant achievements are associated with the Tiangong space station?
- How are Chang’e lunar missions structured and what are their objectives?
- What is the significance of the Beidou Navigation Satellite System?
- How does CASC’s role in China’s space program compare to NASA’s role in the United States?