Questions tagged [china]

Questions regarding Chinese politics, people, and space programs and their relation to space exploration.

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4
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2answers
405 views

China, UAE and US all sending missions to Mars in 2020 (Summer of L̶o̶v̶e Mars); how far apart are their frequencies?

Gizmodo's Second failure of ExoMars parachute test throws schedule in jeopardy says: ExoMars 2020 is due to launch during a narrow window open between July 25th to August 13th 2020, during which ...
8
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1answer
198 views

Where can I find access to information provided by CNSA and Chinese scientists and reputable science authors?

The lack of finality to the current answer to Was Queqiao in a halo or Lissajous orbit? Why do sources disagree? is due in part to the difficulty of finding good, clear, reliable scientific sources ...
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1answer
3k views

What is the purpose of the satellite that China is putting in lunar orbit?

I was just reading an article about the satellite that China is putting in Lunar orbit as phase one for their exploration of the far side of the Moon. Is this satellite just to be used as a signal ...
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1answer
1k views

What will China's new "space station" in Argentinian Patagonia be used for?

The New York Times (fairly strongly worded) article From a Space Station in Argentina, China Expands Its Reach in Latin America describes a "space station" or base equipped with (among other ...
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2answers
707 views

Is there independent evidence that China landed a robot on Mars in May 2021?

I would like to know if there is independent evidence of any kind that China landed a robot on Mars in May 2021? As of May 16, 2021, the last news on CNSA (China National Space Administration) site is ...
11
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1answer
1k views

How does QUESS, China's quantum communications satellite experiment, relay entangled signals?

China launched the Quantum Experiments at Space Scale (QUESS) on the satellite called MOZI or Micius today, which will be used for quantum communications between China and Europe. Popular Science ...
4
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2answers
440 views

Transmission time per day for Chang'e 4?

Congratulations for the sucessfull landing on the back side of the Moon. There is continuous line of site available for radio connection from the lander to the Queqiao relay satellite at the Earth-...
3
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1answer
136 views

What is or are the official English names for the eventual space station being built by China, and of the first module that's in orbit now?

China has launched the first module of a space station and plans to have astronauts inside it to start woking in about a month. In Astronomy SE they've already started calling it the "Chinese ...
2
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1answer
320 views

What was Chang'e-2's 3D orbit in space? (since it's not in Horizons)

edit: A simple web search in Chinese may turn up something, but I don't know anyone personally who is both both fluent and interested in space exploration. This is a pretty cool orbit - there must be ...
2
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1answer
372 views

What radio frequency does China use to communicate with the Chang'e-4 satellite?

I would assume this probably isn't publically disclosed information, but it doesn't hurt to ask. I am an amateur ham radio enthusiast and I want to listen in on the data.
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3answers
9k views

Why is China still not invited to the ISS? (Or, why do certain countries not get invited/rejected to work on the ISS?)

I understand that U.S. Congress passed a law in 2011 barring space agency collaboration with CNSA because of concerns over "national security". I also get that China blew-up one of their own ...
14
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1answer
339 views

How does the US's 2008 debris cloud compare to India's 2019 and China's 2007 contributions?

The NPR News article NASA: Debris From India's Anti-Satellite Test Raised Threat To Space Station discusses last week's antisatellite test by India described further in answers to India just shot down ...
8
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1answer
2k views

Why do the Chinese launch most of their rockets so far from the coast?

We know that launching rockets near the coast is safe for human settlement areas in case a failure occurs. But, why does China launch its rockets so far from the coast (near hills)? Many launch sites ...
2
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1answer
221 views

How did Chang'e-4 hover, rotate, and then descend so gracefully? (Video)

In this incredible video we can see Chang'e-4 in it's final approach and landing on the moon from the point of view of the spacecraft. The view is horizontal as the spacecraft seems to stop and hover ...
8
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2answers
427 views

Will Chang'e-4 really take a month to "get to the Moon"? With what trajectory?

The Verge's This weekend, China embarks on a historic mission to land on the far side of the Moon says (near the end): We know that the mission is set to launch on top of one of China’s Long March 3B ...
6
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1answer
124 views

Does Tianwen-1 have a near-repeat ground track orbit in order to scan the same general area on each of its low altitude passes?

Though it's not as easy1 to get details on Chinese missions in English, it seems that Tianwen-1 is in a 12,000 x 256 km highly eccentric orbit around Mars, with its hi res cameras able to resolve 0.5 ...
4
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1answer
344 views

What is the purpose and necessity of this giant structure being used in tests of China's Mars lander?

Question: What is the purpose and necessity of this giant structure being used in tests of landing hovering and searching techniques to be used by China's Mars lander? It is shown in images (and a ...
4
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1answer
406 views

CZ-5 plus YZ-2 put SJ-17 in GEO - third stage or separate spacecraft?

CZ-5 = Long March 5 YZ-2 = Yuanzheng 2 SJ-17 = Shijian 17 Gunter's Space Page says: SJ 17 (Shijian 17) is a Chinese experimental satellite flown on the maiden CZ-5/YZ2 launch. It is reportedly ...
3
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1answer
181 views

Was Queqiao in a halo or Lissajous orbit? Why do sources disagree?

Wikipedia's Lissajous orbit says that sources disagree on the nature of Queqiao relay satellite's orbit; if it was in a proper halo orbit or just a Lissajous orbit. Proper halo orbits have the same ...
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1answer
182 views

What spacecraft components are in the foreground of this image of the Earth and Moon? What is the camera inside of?

This tweet shows the image below, and says: Finally, some images from Queqiao, the relay satellite for the Chang'e-4 far side mission, showing the Earth and Moon! Queqiao is in a halo orbit at a ...
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2answers
3k views

What is this red gas at the exhaust of the Long March 3B rocket during liftoff?

While watching today's live stream of the launch of the China National Space Administration (CNSA) Long March 3B rocket carrying Chang'e 3 lunar exploration probe and the Yutu rover to the Moon, @...
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1answer
432 views

Do lunar landers communicate with ground stations during descent and landing?

In about one day China's Chang'e 3 will land on the moon in a fully autonomous way, which is pretty exciting and I think especially the autonomous hazard avoidance system is just amazing. However, I ...
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0answers
414 views

Chinese find material to make space elevator. How much will the cable weigh?

The article China has strongest fibre that can haul 160 elephants – and a space elevator? came out today in the SCMP, and I would like to find out how much the cable would weigh. But I'm not sure if ...
14
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1answer
780 views

Why is China's primary launch facility so far north?

Jiuquan Satellite Launch Center is historically China's preeminent spaceport. It's located only about five degrees south of Baikonur Cosmodrome, whose location, I've been led to believe, was selected ...
11
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1answer
791 views

The upcoming landing of Chang'e 3 on the Moon - Is there detailed information about it anywhere?

China is supposed to land a rover on the Moon soon (2013). This will be the first landing on the Moon from any nation in quiet a few decades - if none of the Google-Lunar-X-Price teams is faster, of ...
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0answers
147 views

Did CNSA astronaut Zhai Zhigang see the ISS during an EVA?

This answer to Has an astronaut ever seen another object in LEO pass by that wasn't mission-related? says: The encounter happened at longer distances ($\sim47\;km$) and the Shenzhou-7 is smaller than ...
4
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1answer
113 views

Are Longjiang 1 and 2 the only spacecraft to image the far side of the Moon in a single frame with detail?

The image below, found in Was this the first-ever photo of a full moon very close to lunar new year? (and used here also) where it was credited to New photo of Lunar farside and Earth was taken by the ...
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1answer
175 views

Where on Mars will China's rover land?

Inspired by this question about all the missions to Mars in 2020, where on this planet will the rover of the mission that China has planned, land and operate ?
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0answers
120 views

Do space stations have standardized officer designations for crew?

I have some anecdotal information. The ISS has a commander, and I noticed here that it had a Flight Engineer, and in this article (found here) I see that Skylab had a Science Pilot. Do space stations ...
2
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1answer
260 views

Does China have a "space coast"? Will it?

I noticed that the Chinese GEO communications satellite Apstar 6C was launched from the Xichang Satellite Launch Center in Sichuan, China. Saying this is far inland would be an understatement. ...
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118 views

How (the heck) is it possible that with China's future 6G satellite network I'll be able to download 1000 movies per second?

The reasonably credible Wall Street Journal has a YouTube channel and the new video SpaceX vs. China: The Quest for Satellite Internet | WSJ says that with Starlink's data rate I can download a 1 Gb ...