Tag: Tiangong 3

China reports discovery of new microbe on its Tiangong-3 space station

8:52 am

China’s state-run press yesterday announced the discovery of a new microbe on its Tiangong-3 space station that appears designed to survive in the harsh environment of space.

In May 2023, the Shenzhou-15 crew collected surface microbial samples using sterile wipes, preserving them at low temperatures in orbit. Subsequent ground analysis revealed the novel Niallia tiangongensis species, confirmed through multidisciplinary methods including morphological analysis, genome sequencing, phylogenetic studies and metabolic profiling, the CMSA said.

…Niallia tiangongensis demonstrates exceptional stress resistance, maintaining cellular redox balance and ensuring robust growth in extreme conditions by regulating bacillithiol (BSH) biosynthesis to counteract space-induced oxidative stress, according to the CMSA. It exhibits distinctive capabilities in biofilm formation and radiation damage repair, making it a highly adaptable “all-rounder” for space environments.

More information here. This new microbe has characteristics both different and similar to microbes found on ISS. Its discovery is also not that unique, a it appears such unusual and new biology has been found in other space-related environments, such as the clean rooms on Earth used to build spacecraft. For example, dozens were found in clean room for the Phoenix Mars lander in the early 2000s.

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China hints that it is moving forward with expansion of Tiangong-3 space station

12:39 pm

According to a statement by one Chinese official, China will use its Long March 5B rocket to soon launch more modules to its Tiangong-3 space station, expanding the station’s size considerably.

“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.

In 2022 China had hinted on this same plan, but it is three years later and nothing has yet happened. It could be this statement was an attempt at lobbying by this official, trying to convince the government to finance the new modules. Or it could be the first new module, a hub with six docking ports that will allow the additional fullsize modules to be attached, is nearing completion and launch.

Who knows? One must take all such proclamations from China with a grain of salt.

The article also notes the revisions to the Long March 5B rocket so that its core stage no longer reaches orbit to subsequently crash uncontrolled somewhere on Earth. Instead, the upper stage has been upgraded so that it gets the payload into orbit and the core stage shuts down earlier and thus falls into the ocean immediately after launch.

Hat tip to BtB’s stringer Jay.

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Chinese crew returns safely after six months in space

9:36 am

A Chinese crew of three safely landed in northern China today after completing a six month mission on China’s Tiangong-3 space station.

The return capsule of the Shenzhou-19 crewed spaceship, carrying astronauts Cai Xuzhe, Song Lingdong and Wang Haoze, touched down at the Dongfeng landing site in north China’s Inner Mongolia Autonomous Region on Wednesday. The three astronauts are all in good health condition, according to the China Manned Space Agency.

Lots of pictures of the landing and recovery at the link, but that’s pretty much the entire text of the press release from China’s state-run press. As that state-run press does routinely, it repeats that same text as the caption under every picture, over and over again, changing it only slightly for the close-up pictures of each astronaut.

A new crew took over for this one on Tiangong-3, beginning their own six month mission. At the moment China has completed three years of continuous occupation out of a planned ten-year mission.

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China launches three astronauts to Tiangong-3 space station

9:42 am

China today successfully launched a new crew of three astronauts for a six-month mission on its Tiangog-3 space station, its Long March 2F rocket lifting off from its Jiuquan spaceport in northwest China.

The crew’s Shenzhou capsule will dock autonomously with the station later today. This was China’s fifteenth manned mission and ninth to the station, which it has now occupied continuously for more than three and a half years.

The rocket’s core stage and four strap-on boosters crashed somewhere inside China. No word on where or whether they crashed near any habitable areas.

The leaders in the 2025 launch race:

46 SpaceX
21 China
5 Rocket Lab
5 Russia

SpaceX now leads the rest of the world in successful launches, 46 to 36.

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China launches Tianzhou cargo freighter to its Tiangong-3 space station

8:50 am

China today successfully launched a new Tianzhou cargo freighter to its Tiangong-3 space station, its Long March 7 rocket lifting off from its coastal Wenchang spaceport.

The leaders in the 2024 launch race:

114 SpaceX
53 China
13 Russia
12 Rocket Lab

American private enterprise still leads the rest of the world combined in successful launches 132 to 79, while SpaceX by itself leads the entire world, including American companies, 114 to 97.

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Three Chinese astronauts return to Earth

9:32 am

Three Chinese astronauts safely landed in Mongolia today after completing a six month mission on China’s Tiangong-3 space station.

Ye Guangfu, on his second flight, and two rookies, Li Cong and Li Guansu, lifted off on April 25, 2024 at 8:59 am EDT and docked about six-and-a-half hours later. They’ve been aboard the past six months conducting scientific experiments and performing maintenance activities including a space walk.

They landed today, November 3, at 12:24 pm EST at the Dongfeng landing site in the Inner Mongolia Autonomous Region. China is 13 hours ahead of EST, so it was a nighttime landing there at 1:34 am November 4. China’s CGTN television network provided live coverage. Descent and touchdown were captured by infrared cameras.

A new crew has taken over occupancy of Tiangong-3, and has now started its own six month mission.

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China launches new crew to its space station

3:55 pm

China today successfully launched a new three-person crew to its Tiangong-3 space station, its Long March 2F rocket lifting off from its Jiuquan spaceport in northwest China.

No word on where the rocket’s side boosters or lower stages, using toxic hypergolic fuel, crashed inside China. The crew will dock with the station mid-day tomorrow.

The leaders in the 2024 launch race:

105 SpaceX
49 China
11 Russia
11 Rocket Lab

American private enterprise still leads the rest of the world combined in successful launches 122 to 72, while SpaceX by itself still leads the entire world, including American companies, 105 to 89.

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China launches three astronauts to its space station

4:23 pm

Earlier today China successfully launched a three-person crew to its Tiangong-3 space station, its Long March 2F rocket lifting off from its Jiuquan spaceport in the northwest of China.

No word on where the four strap-on boosters, the payload fairing, the core stages, and the upper stage crashed inside China, using very toxic hypergolic fuels. This new crew will replace the present crew, who are completing a six-month tour. The new crew will complete a similar-length mission.

The leaders in the 2024 launch race:

42 SpaceX
17 China
6 Russia
5 Rocket Lab

American private enterprise still leads the rest of the world combined in successful launches 49 to 29, while SpaceX by itself still leads the rest of the world, including other American companies, 42 to 36.

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Chinese astronauts do spacewalk to repair Tiangong-3 solar panel

9:27 am

Two Chinese astronauts yesterday completed a 7.5 hour spacewalk on that country’s Tiangong-3 space station to test a repair technique to what the state-run press said was minor damage on a solar panel from micrometeorites.

The EVA posed new challenges for the astronauts, according to Dong Nengli, deputy chief designer of China’s human spaceflight program. “For the previous extravehicular activities, the major tasks for astronauts were to install and check. This round of extravehicular activities on Thursday we call experimental servicing,” Dong told CCTV. “This time the astronauts operated on one of the solar wings. It is flexible, to a certain extent, and also very thin, which limits the space of operation to a certain degree,” Dong said.

Dong added that the successful EVA meant the teams had mastered the ability for some extravehicular repairs. Success was thus, “laying a solid foundation for us to guarantee the space station’s safety and reliability in the future.”

It must be noted that no specific details about what was done were provided, nor did the short video released by China showing highlights of the spacewalk show the specific repair work.

Nonetheless, there is an aspect of China’s space station that makes it a far more powerful national symbol than ISS: It is China’s alone, built, launched, occupied, and maintained by China alone. It fuels national pride in a way that ISS never has, because President Bill Clinton decided to use it in the 1990s for foreign policy concerns by giving the Russians an equal partnership. Neither the U.S. nor Russia have obtained the same kind of prestige at home and abroad because neither really built ISS on their own. It was a shared effort, which meant neither could claim it.

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China delays till ’25 the launch of its Hubble-class optical space telescope

9:34 am

China today revealed that it is delaying the the launch of its Xuntian space telescope from early next year to 2025.

Zhan Hu, project scientist of Xuntian space telescope system, revealed that the delay was necessary for the team to finalize a preflight “engineering qualification model.” This model will undergo rigorous performance tests early next year. Despite the setback, China is making significant strides by domestically developing all five instruments for Xuntian, a first for the country, Scientific American reported.

The optical telescope, designed to somewhat comparable to Hubble, is intended to fly close to China’s Tiangong-3 space station where astronauts will periodically fly over to do maintenance and repair. Its primary mirror, two meters in diameter, is only slightly smaller than Hubble’s 2.4 meter mirror.

The article says the launch was supposed to happen before the end of this year, but that is incorrect. The launch has been targeting the spring of 2024 since February.

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During landing Shenzhou’s single parachute appeared damaged

10:01 am

A closer look at imagery during the descent by parachute of China’s manned Shenzhou capsule, bringing three astronauts back from Tiangong-3 after a five month mission on October 31, 2023, shows that the capsule’s single parachute had a ripped hole.

In some of the footage, a patch of blue sky can be seen through the red-and-white-banded parachute. Inside the capsule were Shenzhou 16 mission commander Jing Haipeng and crewmates Zhu Yangzhu and Gui Haichao — the latter pair returning to Earth after their first mission to space.

Such a sizable hole, which was visible before a white cloud of vented propellant left the Shenzhou capsule, has not been reported during earlier missions. It did not, however, seem to affect operations.

The landing however was very rough, with the capsule tumbling several times after hitting the ground.

Considering that China presently as three astronauts on Tiangong-3 that have to come home in their own Shenzhou capsule, using this same parachute system, finding out what happened seems imperative. Developing its next generation larger capsule, which will return using three parachutes, also appears essential.

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Chinese crew completes five-month mission on Tiangong-3 after return to Earth

8:32 am

The new colonial movement: A three-man Chinese crew successfully landed today in north China in their Shenzhou capsule, completing a five-month mission on the Tiangong-3 space station.

The full mission length was 154 days. China claims that one of the astronauts was a civilian, but that really means nothing considering the security required to participate in these missions.

The crew that has taken over on Tiangong-3 are expected to do a mission of comparable length, probably pushing the length to six-months.

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China launches new three-man crew to its Tiangong-3 space station

9:02 am

The new colonial movement: China today successfully used its Long March 2F rocket to place a Shenzhou manned capsule into orbit, carrying a new three-man crew to its Tiangong-3 space station and lifting off from its Jiuquan spaceport in northwest China.

Though relatively little specific information about the crew’s mission has been revealed, it is expected they will do a six month mission, as have previous crews, and conduct spacewalks and maintenance on the station. Meanwhile, the present crew on board will spend about a week transferring duties to the new crew, and then return to Earth after completing its own six-month mission.

No word on where the Long March 2F first stage and its four side boosters crashed in the interior of China, all of which use toxic hypergolic fuels.

The leaders in the 2023 launch race:

76 SpaceX
48 China
13 Russia
7 Rocket Lab
7 India

American private enterprise still leads China 88 to 48 in successful launches, and the entire world combined 88 to 76. SpaceX by itself is now tied at 76 with the rest of the world (excluding American companies).

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Tianzhou unmanned freighter completes month-long free flight, re-docks with Tiangong-3

9:30 am

Engineers today successfully re-docked a Tianzhou unmanned freighter to China’s Tiangong-3 space station after 33 days flying in formation with the station.

As is usual, China released no information about the reasoning behind this free flight, though some reasons are obvious. The station has two docking ports, and during that 33-day time period the station also completed a crew swap, with one Shenzhou capsule docking with three new astronauts while the previous crew and its Shenzhou capsule was still docked. The Tianzhou freighter had to undock to provide a port during this time period for the two manned capsules.

This formation free flight and docking was also likely testing the kind of routine maneuvers China plans to do when it launches its Hubble-class optical space telescope next year. That telescope will fly freely near the station during most of its operations. For maintenance and repair however it is my understanding that it will be brought back to the station and docked with it. The just completed independent flight of the Tianzhou freighter demonstrated this capability.

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Three astronauts return to Earth safely from China’s Tiangong-3 space station

9:49 am

After completing six months in space on China7s Tiangong-3 space station, three astronauts safely returned to Earth yesterday, with their Shenzhou capsule touching down in inner Mongolia.

This mission was the first full six month mission on the station. During their mission they completed four spacewalks. Though little was published about what was accomplished on those EVAs, it is likely it involved completing the construction of the station as well as installing some exterior experiments.

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Chinese launch yesterday set record for number of humans in space

8:59 am

The launch yesterday of three Chinese astronauts to that country’s Tiangong-3 space station established a new record, seventeen, for the number of humans in space.

The launch of the next crew to China’s Tiangong space station late Monday (U.S. time) added three astronauts to the population of humans in space, which reached a record number of 17 people in orbit — six Chinese citizens, five Americans, three Russians, two Saudis, and one Emirati astronaut.

The arrival of Chinese astronauts Jing Haipeng, Zhu Yangzhu, and Gai Haichao in space following their launch atop a Long March rocket broke the previous record of 14 people in orbit at one time.

Meanwhile, the four-person crew of the commercial AX-2 mission to ISS, has undocked from ISS, with SpaceX’s Freedom capsule expected to splashdown in the Gulf of Mexico at 11:09 pm (Eastern) tonight.

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China sends a new crew to its Tiangong-3 space station

7:31 pm

Using its Long March 2F rocket, China today (May 30th in China) sent a new three-man crew to its Tiangong-3 space station for a five month mission.

The launch was from the Juiquan spaceport in the interior of China, so both the four side strap-on boosters as well as the core stage crashed somewhere in China. No word of any damage or injuries.

The Shenzhou capsule is expected to dock with the station about six hours after launch. The old crew’s stay will overlap with this new crew for a short time before returning to Earth.

The leaders in the 2023 launch race:

35 SpaceX
20 China
8 Russia
5 Rocket Lab

American private enterprise still leads China 40 to 20 in the national rankings, and the entire world combined 40 to 36. SpaceX alone now trials the rest of the world combined 35 to 36, but trails the entire world including American companies 35 to 41.

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China unveils next Shenzhou launch date and crew to its space station

9:07 am

China today revealed the next three-man crew to occupy its Tiangong-3 space station, with a planned launch in a Shenzhou crew capsule targeting May 30, 2023, Chinese time.

Because of time differences, that launch will occur tonight at 6:28 pm tonight, Pacific time. The rocket will be a Long March 2F taking off from China’s western interior Jiuquan spaceport. The rocket’s lower stages will therefore crash somewhere in China.

The crew will remain on board the station for five months, and with one astronaut the first Chinese to fly in space four times.

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China launches cargo freighter to its Tiangong-3 space station

9:29 am

Using its Long March 7 rocket launching from its coastal Wenchang spaceport, China today successfully placed into orbit a Tianzhou cargo freighter to resupply the Tiangong-3 space station.

The leaders in the 2023 launch race:

29 SpaceX (with a launch scheduled for later today)
17 China
6 Russia
4 Rocket Lab

American private enterprise still leads China 33 to 17 in the national rankings, and the entire world combined 33 to 29.

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April 5, 2023 Quick space links

2:34 pm

Courtesy of BtB’s stringer Jay.

 

 

  • Tianzhou freighter will fly in formation with China’s Tiangong-3 space station

    • The plan is to periodically redock the freighter to the station “when inventories stored inside are needed.” Jay wonders whether this is a test of the similar formation flying that will be required when China’s space telescope arrives next year to orbit near the station for periodic maintenance and repair. I think he is correct.

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January 18, 2023 Quick space links

5:03 pm

Courtesy of Jay, BtB’s intrepid stringer.

 

 

 

 

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China’s possible plans for expanding Tiangong-3

9:20 am

Though the plans have apparently not been approved, the designers of China’s Tiangong-3 space station are now considering expanding the station with additional large modules.

“Following our current design, we can continue to launch an extension module to dock with the forward section of the space station, and the extension module can carry a new hub for docking with the subsequent space vehicles,” [Wang Xiang, commander of the space station system at the China Academy of Space Technology (CAST)] told CCTV following the return to Earth of the Shenzhou-14 crew Dec. 4.

With a new docking hub, the Chinese would actually have the potential of doubling the station’s size by duplicating its present configuration with one central module (with the hub) and two side modules.

The station’s design, an upgrade of the Soviet Union’s Mir station, also allows for relatively easy replacement of modules as they age. Though the station only has a planned ten-year life, do not be surprised if it remains operational for many decades beyond that.

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China launches Tianzhou freighter to Tiangong-3 space station

9:32 am

Earlier today China successfully used its Long March 7 rocket to launch the fifth Tianzhou freighter to its Tiangong-3 space station.

At 12:10 p.m., Tianzhou-5 conducted a fast automated rendezvous and docking at the rear docking port of the space station’s core module Tianhe. This is the first time that China’s cargo craft has completed a fast automated rendezvous and docking in about two hours, setting a world record, according to Pan Weizhen, a designer of the cargo craft system from the China Academy of Space Technology.

The leaders in the 2022 launch race:

52 SpaceX
49 China
19 Russia
9 Rocket Lab
8 ULA

American private enterprise now leads China 75 to 49 in the national rankings, and trails the rest of the world combined 77 to 75.

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Tianzhou-4 freighter undocks from Tiangong-3, while Tianzhou-5 prepares for launch

9:42 am

Chinese engineers have undocked the Tianzhou-4 unmanned freighter from their Tiangong-3 space station, even as other engineers complete the stacking of Tianzhou-5 on its rocket and move it to its launch site.

Tianzhou-4 remains in orbit. At some point it will be de-orbited to burn up over the ocean, but China’s state-run press has not said when. In the past engineers have kept these cargo freighters in orbit after undocking for long periods in order to test their capabilities.

Though the launch date for Tianzhou-5 on its Long March 7 rocket was also not revealed by today’s press report, earlier reports suggest the launch is targeting November 12th.

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Mengtian moved to its permanent port on Tiangong-3

10:01 am

Tiangong-3 station, when completed

Chinese engineers today successfully shifted the new Mengtian module from its docking port to its permanent port to the side, thus completing the assembly of the major components of the Tiangong-3 space station. Shortly thereafter the six astronauts on board the station opened the hatch and entered the module.

The graphic to the right shows the station’s final arrangement, T-shaped. The station however is not fully complete, as the large vertical solar panels have not yet been installed. Based on past station work, these will probably have to be shipped up later, and installed during space walks.

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Mengtian module docks with China’s Tiangong-3 space station

8:54 am

Tiangong-3 station, when completed

The new Mengtian module has docked with the main port of China’s Tiangong-3 space station.

The graphic to the right shows the planned design of the station. Mengtian however is not yet in its side port as shown, but in the main docking port in line with the core module where a Shenzhou crew capsule is shown docked. At some point soon the astronauts on board will use a small robot arm to move Mengtian from the main port to its side port. (This system is very similar to one the Russian’s used on Mir.)

Furthermore, the large vertically oriented solar panels have not yet been installed on the station. These will likely need to be delivered, and require spacewalks to deploy.

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China’s Long March 5B rocket with new space station module is now at launchpad

10:16 am

China’s Long March 5B rocket had now been rolled out to its launchpad, carrying the new Mengtian module for China’s Tiangong-3 space station.

The launch is presently scheduled for October 31, 2022. Assuming China has not upgraded the engines on the rocket’s core stage, that stage will tumble back to Earth, uncontrolled, sometime in the following week. Since it is large enough to survive re-entry, it will hit the ground, thus threatening every habitable location under its orbital path. By allowing this to happen China violates the Outer Space Treaty, to which it is a signatory.

Nor will this likely be the last time China does this. Though this module completes China’s station, as presently designed, this will not be the last Long March 5B launch. China plans to use it put its Hubble-class space telescope into orbit, as well as other things.

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September 15, 2022 Quick space links

3:44 pm

Courtesy of BtB’s stringer Jay, who trolls Twitter so I don’t have to.

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September 13, 2022 Quick space links

4:48 pm

Courtesy of stringer Jay.

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