22.01.2025
Shenzhou-19 crew completes second series of extravehicular activities
This screen image captured at Beijing Aerospace Control Center on Jan. 20, 2025 shows Shenzhou-19 astronaut Song Lingdong performing extravehicular activities outside China's orbiting space station. (Xinhua/Liu Fang)
Members of the Shenzhou-19 crew aboard China's orbiting space station completed their mission's second series of extravehicular activities (EVAs) at 1:12 a.m. (Beijing Time) on Tuesday, according to the China Manned Space Agency.
Astronauts Cai Xuzhe, Song Lingdong and Wang Haoze worked for 8.5 hours to complete multiple tasks, including the installation of space debris protection devices and an extravehicular inspection. They were assisted by the space station's robotic arm and a team on Earth.
Cai and Song, the two crew members assigned to undertake spacewalk duties, have since returned to the Wentian lab module safely.
Since completing their first spacewalk on Dec. 17, 2024, the crew members have undertaken a series of tasks, including the inspection and maintenance of the space station's equipment, system-wide pressure emergency drills, and preparations for the second series of EVAs.
They have completed nearly half of their space journey and are scheduled to carry out a significant number of in-orbit scientific experiments and technological tests, the agency said. Amid their busy schedule, they will also welcome the upcoming Spring Festival, also known as the Chinese Lunar New Year. ■
This screen image captured at Beijing Aerospace Control Center on Jan. 20, 2025 shows Shenzhou-19 astronaut Cai Xuzhe working inside the airlock cabin of China's orbiting space station. (Xinhua/Liu Fang)
This screen image captured at Beijing Aerospace Control Center on Jan. 20, 2025 shows Shenzhou-19 astronaut Wang Haoze working inside China's orbiting space station. (Xinhua/Liu Fang)
This screen image captured at Beijing Aerospace Control Center on Jan. 20, 2025 shows Shenzhou-19 astronaut Song Lingdong leaving China's orbiting space station for extravehicular activities. (Xinhua/Liu Fang)
This screen image captured at Beijing Aerospace Control Center on Jan. 20, 2025 shows Shenzhou-19 astronaut Song Lingdong performing extravehicular activities outside China's orbiting space station. (Xinhua/Liu Fang)
This screen image captured at Beijing Aerospace Control Center on Jan. 20, 2025 shows Shenzhou-19 astronauts Cai Xuzhe (R) and Song Lingdong (L) performing extravehicular activities outside China's orbiting space station. (Xinhua/Liu Fang)
Quelle: Xinhua
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Update: 27.02.2025
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China Focus: Shenzhou-19 crew successfully tests pipeline inspection robot on space station
China's Shenzhou-19 crew aboard the orbiting Tiangong space station recently completed the in-orbit test of a pipeline inspection robot, laying a solid technical foundation for future pipeline inspections on the space station.
The astronauts constructed a simulated pipeline in orbit, which included straight pipes, curved pipes and conical pipes of various diameters. Within this simulated pipeline, they conducted tests on the robot's mobility, its extraction from its contracted state and its extraction after fine-tuning its status, according to the China Manned Space Agency (CMSA).
During the test, the robot demonstrated stable and reliable movement through various types of pipelines, validating its autonomous mobility technology designed to suit multiple complex pipeline structures. Additionally, the robot could be easily extracted from complex pipelines even after a power outage, confirming the safety of its passive compliant mechanism.
As the first in-orbit test of a special-purpose robot conducted on China's space station, it showcased the robot's autonomous adaptability and safety in complex pipeline environments, accumulating valuable experience for future practical applications of robots in space station pipelines, the CMSA said.
The CMSA noted that a pipeline inspection robot faces numerous challenges within pipelines. For instance, it must adapt to the complex structures inside the space station's pipelines and complete autonomous movements.
It also needs to ensure its own safety -- including maintaining appropriate contact force with pipeline walls, adapting to changes in pipeline diameter and avoiding becoming stuck in the pipeline in unexpected situations.
To overcome these challenges, researchers developed a biomimetic variable stiffness design for this pipeline inspection robot.
Inspired by the tube feet of echinoderms such as starfish, sea urchins and sea cucumbers, which retract into the body when at rest and extend outward during movement, the researchers designed a combined active and passive leg-scissor mechanism for the robot.
The passive mechanism enables the robot's legs to swiftly adjust their length in response to changes in pipe diameter, ensuring adaptability to varying pipe sizes.
Meanwhile, the active mechanism dynamically regulates the pressure between the robot's feet and the pipe wall, guaranteeing reliable contact and providing sufficient propulsion for the robot to move forward.
The robot's intelligent "brain" calculates its posture and position using its full-body sensors and generates a motion strategy. Under the premise of ensuring pipeline safety, it adjusts the positions, speeds and force outputs of all joints to enable smooth movement within the space station's pipelines.
During the test, ground personnel monitored the robot's position, current, contact force and other status data in real-time through ground support software, synchronously observing the robot's movement. This allowed them to assist astronauts in completing in-orbit operations.
Also, by analyzing the acquired data, ground personnel assessed the test results, providing a basis for subsequent experiments.
Quelle: Xinhua
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Update: 22.03.2025
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Shenzhou-19 crew completes third extravehicular activities
This screen image captured at Beijing Aerospace Control Center on March 21, 2025 shows Shenzhou-19 astronaut Cai Xuzhe leaving China's orbiting space station for extravehicular activities. (Xinhua/Li Minggang)
Members of the Shenzhou-19 crew aboard China's orbiting space station completed their mission's third series of extravehicular activities (EVAs) at 8:50 p.m. (Beijing Time) on Friday, according to the China Manned Space Agency (CMSA).
Astronauts Cai Xuzhe, Song Lingdong and Wang Haoze worked for about seven hours to complete multiple tasks, including the installation of space debris protection devices and extravehicular auxiliary facilities, as well as extravehicular equipment inspection. They were assisted by the space station's robotic arm and a team on Earth.
Cai and Song, the two crew members assigned to undertake spacewalk duties, have since returned to the Wentian lab module safely. Cai has now carried out five extravehicular missions, more than any other Chinese astronaut to date, according to the CMSA.
The Shenzhou-19 crew has been in space for nearly five months, and the various space scientific experiments and tests are progressing smoothly. The crew is scheduled to return to Earth in more than a month. ■
This screen image captured at Beijing Aerospace Control Center on March 21, 2025 shows Shenzhou-19 astronauts Cai Xuzhe (R) and Song Lingdong preparing for extravehicular activities inside the airlock cabin of China's orbiting space station. (Xinhua/Li Minggang)
This screen image captured at Beijing Aerospace Control Center on March 21, 2025 shows Shenzhou-19 astronaut Cai Xuzhe performing extravehicular activities outside China's orbiting space station. (Xinhua/Li Minggang)
This screen image captured at Beijing Aerospace Control Center on March 21, 2025 shows Shenzhou-19 astronaut Cai Xuzhe performing extravehicular activities outside China's orbiting space station. (Xinhua/Li Minggang)
This screen image captured at Beijing Aerospace Control Center on March 21, 2025 shows Shenzhou-19 astronaut Wang Haoze working inside China's orbiting space station. (Xinhua/Li Minggang)
Quelle: Xinhua
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Update: 11.05.2025
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China to launch new modules to Tiangong space station
A view of Tiangong from the Shenzhou-17 spacecraft as it approaches the forward docking port. Credit: CMSEO
HELSINKI — China is preparing to launch new modules to its Tiangong space station to meet growing demands for science and potentially boost international cooperation.
The Long March 5B, currently China’s most powerful rocket, is slated to launch new Tiangong modules, according to an official with China’s state-owned main space contractor.
“According to the plan, the Long March 5B rocket will also carry out the future launches of additional modules for the crewed space station,” Wang Jue from China Aerospace Science and Technology Corporation (CASC) told China Central Television (CCTV) April 30.
No official timeline has been released for the missions, but the comments appear to confirm plans to add modules to Tiangong, a T-shaped, three-module orbital outpost constructed across 2021-2022.
China space officials have noted the possibility of expanding Tiangong on a number of occasions in recent years. The CCTV report, however, notes growing experimental demands which are placing higher requirements on the space station’s available space and energy supply.
Earlier reporting notes that a multi-functional expansion module could be the first new module to launch. It would feature six docking ports and dock with Tiangong’s core Tianhe module, allowing further modules to be integrated into the station.
Expanding Tiangong would enhance opportunities for science, payload hosting, and international cooperation, particularly for crewed missions.
Earlier this year, China’s human spaceflight agency also announced it would be training astronauts from Pakistan to fly to Tiangong, in what would be the first international astronauts to do so. An agency official also noted in April that it was in discussions with other countries regarding flights of their astronauts to Tiangong.
China is developing a new-generation crew spacecraft with two variants: one for low Earth orbit (LEO) and one, named Mengzhou, for crewed lunar missions. The partially reusable LEO version could carry as many as 6-7 astronauts to Tiangong, or fewer astronauts and up to 500 kilograms of cargo.
This would improve options and flexibility. Currently, China sends three astronauts to Tiangong aboard Shenzhou spacecraft for six-month-long missions. Flights involving international partners would likely be shorter in duration and involve fewer mission responsibilities, at least initially.
A first launch of the Long March 10 rocket for carrying the LEO new-gen spacecraft is scheduled for 2026. A common booster core variant is being developed for Mengzhou and the crewed lunar mission planned by China to launch before 2030.
The expected expansion signals China’s long-term commitment to maintaining a permanent human presence in low Earth orbit independent of the International Space Station, despite also working on crewed moon plans. A recent NASA budget proposal meanwhile looks to reduce funding for ISS operations, while commitment to backing commercial replacements is not clear.
Long March 5B safety
In the interview, Wang also noted efforts to improve safety, possibly referring to the uncontrolled reentries of the first stage of the Long March 5B launches used to construct Tiangong.
“The main focus will be on enhancing reliability and safety. On one hand, we aim to further improve the safety of controlled re-entry of the first-stage rocket body through optimized design. On the other hand, we will continue to increase the product’s maturity and stability in order to further enhance the inherent reliability of the Long March 5B in mission execution, laying a solid foundation for the continued construction of the space station.”
China has recently been using the Long March 5B to launch satellites for the Guowang megaconstellation. Those launches have used a Yuanzheng-2 upper stage to carry the payloads into orbit, with the first stage remaining suborbital and falling into the ocean in a planned manner.
Xuntian space telescope
The next Long March 5B launch for the Tiangong space station is likely to be the launch of the Xuntian space telescope—a 2.0-meter-aperture, “Hubble class” observatory with a field of view approximately 300 times greater than Hubble, allowing it to survey huge portions of the sky across a nominal 10-year mission.
Xuntian will feature a 2.5-gigapixel survey camera, and be used to study areas including dark matter, dark energy, galaxy formation and evolution of the cosmos. Xuntian will co-orbit with Tiangong, and be able to dock for maintenance, repairs, refueling and possibly upgrades.
Launch of Xuntian has been delayed by a number of years, but 2024 presentations indicate launch could take place in December 2026.
Quelle: SN
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Update: 22.05.2025
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Shenzhou-20 astronauts complete first spacewalk
This video screenshot taken at Beijing Aerospace Control Center on May 22, 2025 shows Shenzhou-20 astronaut Chen Dong leaving China's orbiting space station for extravehicular activities. The Shenzhou-20 crew on board China's orbiting space station completed their mission's first series of extravehicular activities on Thursday, according to the China Manned Space Agency. (Xinhua/Li Yanchen)
The Shenzhou-20 crew on board China's orbiting space station completed their mission's first series of extravehicular activities on Thursday, according to the China Manned Space Agency.
This screen image captured at Beijing Aerospace Control Center on May 22, 2025 shows Shenzhou-20 astronaut Chen Zhongrui performing extravehicular activities outside China's orbiting space station. The Shenzhou-20 crew on board China's orbiting space station completed their mission's first series of extravehicular activities on Thursday, according to the China Manned Space Agency. (Xinhua/Li Yanchen)
This screen image captured at Beijing Aerospace Control Center on May 22, 2025 shows Shenzhou-20 astronaut Chen Dong performing extravehicular activities outside China's orbiting space station. The Shenzhou-20 crew on board China's orbiting space station completed their mission's first series of extravehicular activities on Thursday, according to the China Manned Space Agency. (Xinhua/Li Yanchen)
This screen image captured at Beijing Aerospace Control Center on May 22, 2025 shows Shenzhou-20 astronaut Chen Zhongrui performing extravehicular activities outside China's orbiting space station. The Shenzhou-20 crew on board China's orbiting space station completed their mission's first series of extravehicular activities on Thursday, according to the China Manned Space Agency. (Xinhua/Li Yanchen)
This screen image captured at Beijing Aerospace Control Center on May 22, 2025 shows Shenzhou-20 astronaut Chen Dong performing extravehicular activities outside China's orbiting space station. The Shenzhou-20 crew on board China's orbiting space station completed their mission's first series of extravehicular activities on Thursday, according to the China Manned Space Agency. (Xinhua/Li Yanchen)
This screen image captured at Beijing Aerospace Control Center on May 22, 2025 shows Shenzhou-20 astronaut Chen Dong performing extravehicular activities outside China's orbiting space station. The Shenzhou-20 crew on board China's orbiting space station completed their mission's first series of extravehicular activities on Thursday, according to the China Manned Space Agency. (Xinhua/Li Yanchen)
This screen image captured at Beijing Aerospace Control Center on May 22, 2025 shows Shenzhou-20 astronaut Chen Dong performing extravehicular activities outside China's orbiting space station. The Shenzhou-20 crew on board China's orbiting space station completed their mission's first series of extravehicular activities on Thursday, according to the China Manned Space Agency. (Xinhua/Li Yanchen)
Quelle: Xinhua