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#26 2021-05-15 15:58:26

Mars_B4_Moon
Member
Registered: 2006-03-23
Posts: 4,796

Re: Chinese Unmanned Probes

I hear they only planned for 90 days. Perhaps they also expected gusts of wind to clean the Rover as it did Perseverance, Opportunity, Spirit, Curiosity.  They plan to check under the ground for water-ice and detection of permafrost in Utopia Planitia another planned mission might bring a 3-D printer to use material to build / print new objects although that might be a Chang'e Moon mission using lunar regolith, its difficult to say if China will chose one as priority over the other, the Mars or Moon...or Maybe they have their eye on both worlds.

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#27 2021-05-15 16:37:41

SpaceNut
Administrator
From: New Hampshire
Registered: 2004-07-22
Posts: 27,185

Re: Chinese Unmanned Probes

wow you last visited and posted in 2015, please do not wait so long...

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#28 2021-05-17 04:27:17

Mars_B4_Moon
Member
Registered: 2006-03-23
Posts: 4,796

Re: Chinese Unmanned Probes

Hi SpaceNut
I think something happened to the search at google and other sites as this forum site rarely shows in searchlinks, I'm not sure if that's a mistake on their side but now I use other alternative search engines these days trying to get away from BigTech censorship. I also had the older offline forum site on bookmark, its possible you lost a lot of old users when the older ikon board went down.

There are rumors online on social media sites like youtube twitter the Mars rover - Zhurong will communicate with either Mars Express or one of the NASA orbiters. I'm not sure if this is true or just a rumor about linking to to other Orbiters, but some of the media accounts seemed to link to aircraft industry and ESA. There are a lot of clips from Chinese media now being translated and mirrored on other online accounts. A site Spacenews has a report on the Rover.
https://spacenews.com/chinas-zhurong-ma … -planitia/
'Zhurong is equipped with six science payloads, including a laser-induced breakdown spectroscopy instrument for analysing surface elements and minerals, panoramic and multispectral imagers, a climate station, magnetometer and a ground-penetrating radar.
It aims to return data on potential water-ice deposits, weather, topography and geology, complementing science carried out by missions from other space agencies.'

There is some political thing at play, China could get could PR for the landing but China spacenews isnt on the media of the West that much, China is also not on the ISS, there is an exclusion policy by the Congress and Senate and exceptions can and have been granted by Congress on a case-by-case basis.

Also there is a social media account following the Rover
https://twitter.com/MarsZhurong/status/ … 7317857283
' Landing coordinates confirmed. 109.9E, 25.1N.  '

The rumors I read are bandlink it might be ok slow telemetry but not for images yet...
another Account called C Yang claims the orbiter will change orbit and a more high speed bps transmission will be established

bandwith and high speed comms seems to always be some kind of issue with these missions to the outer planets
Maybe future concepts like Laser Communication or other forms of Transmission will be used by the Space Agencies of the Future?


U.S. senator: China landing on Mars a reminder ‘we don’t own space anymore’
https://sciencemetro.com
https://www.earthspacehumanity.com

As China and more players begin to deploy assets in space, King said the United States should push for a global agreement on norms of behavior. “It’s in everybody’s interest,” he said. “Ships pass each other on the right. We need standards so we don’t have chaos.”

There is also news that China now Considers Voyager-like Mission to Neptune or to go out to the Heliosphere or KBO objects like New Horizon.
I think the news media calls it by the IHP name given at a science conference or calls it 'Interstellar Express' mission.

EDIT...
i see you already posted a news item on the link up in the other thread so its probably a true story

Last edited by Mars_B4_Moon (2021-05-17 05:03:26)

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#29 2021-05-17 08:00:42

Mars_B4_Moon
Member
Registered: 2006-03-23
Posts: 4,796

Re: Chinese Unmanned Probes

The Chinese mission went to L point 1. Lagrange points are positions in space where objects sent there tend to stay put. At Lagrange points, the gravitational pull of two large masses precisely equals the centripetal force required for a small object to move with them. Sun–Earth L1 is suited for making observations of the Sun–Earth system, Sun–Earth L2 is a good spot for space-based observatories, especially helpful for infrared astronomy and observations of the cosmic microwave background. The three collinear Lagrange points (L1, L2, L3) were discovered by Leonhard Euler a few years before Joseph-Louis Lagrange discovered the remaining two L4 and L5. The Planet Mars, Saturn's moon Tethys and Neptune have Natural objects at Lagrange points.

China's moon-sampling Chang'e 5 probe beams home eerie images from deep space

https://www.space.com/china-chang-e-5-m … ace-images


Chinese scientists have said that Chang'e 5 may head to new targets after completing its tests at Sun-Earth Lagrange point 1.

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#30 2021-05-17 08:37:21

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 12,757

Re: Chinese Unmanned Probes

For Mars_B4_Moon re #29

Thank you for the link to the article about the continuing voyage of Chang'e 5 and particularly the L1 visit!

I was happy to discover that the Wikipedia editors are on top of this news:

https://en.wikipedia.org/wiki/List_of_o … nge_points

Chang'e is included in the list of probes at or planned for L1

(th)

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#31 2021-06-05 13:57:55

Mars_B4_Moon
Member
Registered: 2006-03-23
Posts: 4,796

Re: Chinese Unmanned Probes

I suspect Chinese are already testing Mars tech on the Moon. Here is some of the coverage of their Lunar mission. http://newmars.com/forums/viewtopic.php?id=9814 Inside their Moon Rover they had a Lunar Micro Ecosystem, a kind of Biodome which tested if life or any kind of growth could exist on the Moon they tested cottonseed, potato, rapeseed, as well as fruit fly eggs. There was plant life growing from the seeds but eventually they were destroyed by the Lunar Elements long durations of hot days and deep colds could risk potential future missions but China did learn something interesting from this experiment.

Chang'e 3 was a Lunar Rover mission, the mission might still be Ongoing as the Lander might still be active, the Robot Rover itself was landed on the Moon in  February 2014 it was designed to oeprate for 3 months and ceased to transmit data a little after one year.

Chang'e-4 was the Lunar farside landing mission, the Chang'e 4 was originally built as a backup for Chang'e 3 ...I'm wonder did they also build a back up for their Mars missions?

China's lunar rover on far side of the moon, rolls up to crater's edge.
https://hooktube.com/watch?v=RuEkfKGzFUY
https://yewtu.be/watch?v=RuEkfKGzFUY

China might be growing stuff on the Moon but Space farming has been studied on MIR and the Shuttle and ISS, it is usually a study of plant growth, sometimes insects or the cultivation of crops for food and other materials in space. The Mars Desert Research Station also study this area of science back on our planet Earth.
https://www.popsci.com/military-aviatio … migration/

Hong Kong PolyU professor unveils 'Mars Camera'
http://www.ecns.cn/video/2021-06-04/det … 1129.shtml
This "unimpressive" camera is called "Mars Landing Surveillance Camera" ("Mars Camera").

"Don't look down upon it," said Professor Yung Kai-leung of the Hong Kong Polytechnic University (PolyU), who led the research.

China's first Mars probe Tianwen-1 carrying the Zhurong rover landed on the Red Planet on May 15.

The "Mars Camera" plays the role of an eye to monitor the landing and surrounding environment on the Mars surface.

The Mars Camera is light in weight (around 390g) yet strong and durable enough to withstand the extreme temperature differences of about 150 degrees Celsius experienced during the nine-month journey between Earth and Mars, and a huge impact shock of 6,200G, i.e., 6,200 times the force of Earth's gravity.

Professor Yung has collaborated with the China Academy of Space Technology in deep space exploration for years, developing a "Camera Pointing System" for Chang'e 3 in 2013 and for the historic landing of Chang'e 4 on the far side of the moon in 2019, and the "Surface Sampling and Packing System" for Chang'e 5, China's first lunar sample return mission.

He also mentions a MSR mission in the vid

Last edited by Mars_B4_Moon (2021-06-05 14:13:12)

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#32 2021-08-08 11:42:11

Mars_B4_Moon
Member
Registered: 2006-03-23
Posts: 4,796

Re: Chinese Unmanned Probes

Can the U.S. and China Cooperate in Space?
https://www.scientificamerican.com/arti … -in-space/
Joe Biden urged to work WITH China as NASA warns Xi and Putin threaten 'new space race'
https://www.express.co.uk/news/science/ … tation-scn
China embarks on a decade of human space exploration
https://physicsworld.com/a/china-embark … ploration/
The worrisome Chinese space programme
https://www.thestatesman.com/supplement … 89622.html

from twitter feeds

China's space ambitions
https://twitter.com/TheMarsSociety/stat … 4328426501

- rough translation -

The second Moon Rabbit Rover, Chang'e is alive, photo from the lander of the lunar rover
https://twitter.com/SegerYu/status/1423510136308465666

CNSA CLEP recently released new colored photos taken by #Yutu2 Lunar rover. Scientific data of Chang’e lunar exploration project are available to the public at https://moon.bao.ac.cn Yutu2 lunar rover has been working on the far side of the moon for more than 900 days.
https://twitter.com/CNSAWatcher/status/ … 2216053760

https://twitter.com/AJ_FI/status/1420987970786578434
Zhurong update (Sol 75): the rover has continued south after investigating a dune south of the parachute+backshell. Drivers now planning a route through the complex and rock-strewn Martian terrain below. Zhurong has covered 708 metres as of July 30.

https://twitter.com/AJ_FI/status/1424288012477796354
Chinese doing new type of exercise workout on their space station

Last edited by Mars_B4_Moon (2021-08-08 11:42:43)

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#33 2022-01-05 11:54:46

Mars_B4_Moon
Member
Registered: 2006-03-23
Posts: 4,796

Re: Chinese Unmanned Probes

A lot of people believe China will again launch nuclear power into space, nobody is really sure in news and social media what they are going to do but there are discussion they could perhaps design a 'Reactor' in space to power a site or maybe they want a 'Space-Tug idea.

China's Tianwen-1 Mars Orbiter Snaps Breathtaking Space Selfies With Red Planet As A Backdrop
https://hothardware.com/news/tianwen-1- … red-planet

The Chinese call on nuclear-armed nations to focus on AI and space as well...'Beijing's call for greater cooperation may be met with skepticism'
https://www.japantimes.co.jp/news/2022/ … -ai-space/

China's 'Artificial Sun' Has Just Hit a New Nuclear Fusion Milestone
https://interestingengineering.com/chin … -milestone

4 key missions in 2022 include finishing core of space station, sea rocket launches
https://www.scmp.com/news/china/science … shing-core

China plans missions to moon's south pole
https://www.moondaily.com/reports/China … e_999.html
'China has approved the fourth phase of its lunar exploration program, including a basic model of a research station built on the moon over the coming decade, according to the China National Space Administration.'

Last edited by Mars_B4_Moon (2022-01-05 11:59:59)

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#34 2022-03-12 04:05:40

Mars_B4_Moon
Member
Registered: 2006-03-23
Posts: 4,796

Re: Chinese Unmanned Probes

China’s first Mars rover reveals how weather and ancient water changed the surface of the largest impact basin on Mars.
https://www.space.com/china-zhurong-rov … mars-rocks

Researchers found grooves and etchings on rocks around Zhurong's landing site.

"The rock textures observed at the site thus far may indicate both the presence of physical weathering – for example, impact sputtering, wind erosion and potential freeze–thaw weathering – and aqueous interactions involving salt and brine," the authors said in the paper, adding that the site offers opportunities for follow-up investigations.

"These rock and soil targets provide excellent opportunities to peek into the aqueous history and climate evolution of the northern lowlands, and shed light on the habitability evolution of Mars."

Kirsten Siebach, an assistant professor at the Rice University Department of Earth, Environmental, and Planetary Sciences, agrees with the assessment by the Chinese team.

"It looks like there's surface evidence for something like a contraction-expansion process, which can be from brine or a freeze/thaw effect or really significant temperature changes," she told Space.com. "That causes the rocks to kind of flake apart. This is consistent with what we've seen at other landing sites on Mars where the rocks are exposed differently than on Earth."

Chemistry data would help provide more information on what has been going on in the area. Zhurong has a Laser Induced Breakdown Spectroscopy (LIBS) instrument which could fire its laser to create a tiny amount of plasma from the target and analyze its composition. The new paper does not make use of any LIBS data, nor states if it was collected from the rock specimens...

"By having 9 to 10 landing sites across the surface of Mars, we're starting to get a better sense for what processes are relatively or seem to be global," Siebach said.

Siebach notes that the paper contains a lot of valuable information on the physics of the soil and how the ground reacts to the rover driving over it and its landing equipment. "This is actually really important if you want to land there with humans."

China is planning a Mars sample return mission, potentially launching in 2028, but has not yet released information on candidate landing sites.

NASA’s Viking 2 lander set down in northern Utopia Planitia in 1976 among numerous rocks, while Zhurong is operating in much less complicated terrain.

Zhurong has already completed its primary mission of 90 sols. But the rover is continuing its way to the south of its landing site, collecting data as it goes.

Papers on TW-1 and Zhurong in its latest issue but most papers are in Chinese
https://www.sciengine.com/publisher/scp … lug=browse

What it sounds like

sound recordings from Mars rover
https://www.sbs.com.au/news/video/china … /or3jwx7ix

Last edited by Mars_B4_Moon (2022-03-12 04:50:55)

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#35 2022-05-21 15:37:56

Mars_B4_Moon
Member
Registered: 2006-03-23
Posts: 4,796

Re: Chinese Unmanned Probes

China to launch Tianwen 2 asteroid-sampling mission in 2025

https://www.space.com/china-tianwen2-as … 025-launch

Ultra high-resolution images of moon surface by Chang’e 5.

https://twitter.com/CNSAWatcher/status/ … 6891115520

Crater Xu Guangqi and Statio Tianchuan - the landing site, viewed from LCAM during obstacle avoidance maneuvers in the Approach Stage
https://twitter.com/TheElegant055/statu … 5275643905

Change5 - Interaction between residual plumes of the lander's YF-36 7500 N main engine and the lunar surface viewed from LCAM during the free-falling stage
https://twitter.com/TheElegant055/statu … 0045859840


The Rover Zhurong is taking damage or dust from the elements of Mars?  The Rover's solar arrays have been tilted up to increase sun exposure and the rover's activities scaled back to preserve power...dust issues?
it has entered a hibernation mode and expected to come out of it in December?

https://twitter.com/PDChina/status/1527469160808058882

https://mp.weixin.qq.com/s/upO6NTh-AZ7oNLjv0BmNdw

rough translation -

'In order to safely survive extreme weather conditions such as the cold winter of Mars and sandstorms, the "Zhurong" rover has designed a mode of operation such as autonomous hibernation' ' Almost 1 year after landing on Mars, Mars runs near perihelion, the direct sun is in the southern hemisphere, the northern hemisphere had just entered the summer and while now the southern hemisphere has now entered the winter.'
'It will need to survive extreme weather conditions such as the cold winter of Mars and sandstorms'


Map of Mars around Zhurong Mars rover landing spot by Tianwen1 Mars orbiter

https://twitter.com/CNSAWatcher/status/ … 9118747648

China's Mars rover Zhurong goes dormant to survive

https://news.cgtn.com/news/2022-05-20/C … index.html

Last edited by Mars_B4_Moon (2022-05-21 15:46:25)

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#36 2022-06-14 19:17:37

Mars_B4_Moon
Member
Registered: 2006-03-23
Posts: 4,796

Re: Chinese Unmanned Probes

Hydroxl OH

China’s lunar lander finds evidence of native water on moon
https://www.eurekalert.org/news-releases/955945
Our results show the hydroxyl contents of lunar soils in Chang’E-5 landing site are with a mean value of 28.5 ppm, which is on the weak end of lunar hydration features. This is consistent with the predictions from remote sensing and ground-based telescopic data. Laboratory analysis of the Chang’E-5 returned samples also provide critical clues to the possible sources of these hydroxyl contents.

China's lunar lander finds evidence of native water on moon
https://phys.org/news/2022-06-china-lun … ative.html

Last edited by Mars_B4_Moon (2022-06-14 19:20:34)

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#37 2022-07-26 02:40:17

Mars_B4_Moon
Member
Registered: 2006-03-23
Posts: 4,796

Re: Chinese Unmanned Probes

Phobos seen by orbiting Tianwen-1 satellite (subtitles)
https://www.youtube.com/watch?v=D_-Q62Q_eNs

pic
https://mp.weixin.qq.com/s/ziktrq8LcH-g065k3TcYRQ

The idea of Neptune orbiter mission powered by suggests nuclear technology is a path China's space industry.

China to put large telescope in orbit next year
https://www.spacedaily.com/reports/Chin … r_999.html

China plans to launch a large space telescope next year to fly alongside the Tiangong space station, according to the China Academy of Launch Vehicle Technology.

The academy said a Long March 5B heavy-lift carrier rocket will deploy the Xuntian space telescope in a low-Earth orbit similar to the track of the Tiangong station as they both circle Earth. The telescope will carry out deep-space observation and research in the frontier fields of science, it said.

The academy is the designer and builder of the Long March 5B, the most powerful Chinese rocket when it comes to carrying capacity for low-Earth orbit. The rocket is central to China's space station program because it is now the only Chinese launch vehicle capable of carrying large space station parts into orbit.

Chinese language article

Images of Zhurong from orbit & other orbital views, plus an image of Perseverance during its last Mars sampling operation
https://news.sina.com.cn/c/2022-03-24/d … 1404.shtml

Lunar Maps Exploration the Chinese Moon Rover & Chang'e program
(Chinese language with pics)
https://www.hljtv.com/news/folder9/2022 … 8897.shtml

Lots of Chinese names on Mars now, Names Approved for Mars: 22 Feature Names Near the Tianwen-1 Landing Site

https://astrogeology.usgs.gov/news/nome … nding-site

There is still some speculation about their future plans, some info has gone public with press releases but some are unsure what the next missions will be, for example there could be a test of 3D printing technology or Chang'e-8 switch something from a previous or future mission, from a testbed of tech to became a unmanned lunar base.

Journalists might already be 'mixing up' missions.

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#38 2022-10-03 21:59:17

Mars_B4_Moon
Member
Registered: 2006-03-23
Posts: 4,796

Re: Chinese Unmanned Probes

Insights Into Utopia Basin Revealed By Mars Rover Zhurong

https://astrobiology.com/2022/09/insigh … urong.html

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