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Questions tagged [china]

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

5
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1answer
181 views

Where is that lunar-grown cotton seed sprout?

Most of us have seen this picture of the cotton seed currently sprouting inside a Chinese lander on the far side of the moon: Source The image shows see a plastic grid with a gelatinous overlay of ...
1
vote
1answer
108 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 ...
0
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1answer
109 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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0answers
28 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.
4
votes
2answers
256 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-...
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0answers
37 views

Launch Vehicle LM2D

As it is well known, the circularization of orbits needs at least 3 stages. How could the Chinese launch vehicle LM2D circularizes its orbit with only 2 stages?
8
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2answers
190 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 ...
3
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0answers
128 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 ...
3
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1answer
713 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 things) a ...
5
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1answer
99 views

Where to look for newest images from Chang'e 3?

The tomorrow lunar eclipse is bound to look spectacular from the Moon - and as far as I know, Chang'e 3 is still fully operational, including its 3 high-definition stereo cameras. That means a chance ...
18
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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 ...
2
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1answer
130 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. ...
2
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1answer
208 views

Is China collaborating with Russia on the Soyuz, or perhaps developing their own?

I saw the following statement in the BBC's short article and video Soyuz: the Soviet marvel that remains on duty after 50 years. As a subtitle in the video: And it will remain on duty for years: ...
5
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0answers
224 views

How much RTG fuel does China have?

Chang'e 3 is still operating, 3 years later, sending good science from its LUT (Lunar-based Ultraviolet Telescope) - running on RTG batteries. NASA is supposedly scrapping the bottom of the barrel ...
13
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1answer
511 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 ...
2
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1answer
788 views

What makes Gaofen-4 “the most powerful GEO spy satellite”?

Does Popular Science's GAOFEN 4, The world's most powerful GEO spy satellite, continues China's great leap forward into space label as most powerful GEO spy satellite refer to optical resolution, ...
29
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3answers
4k 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 ...
3
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1answer
266 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 ...
10
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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 ...
0
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1answer
196 views

China. Its very own modular spacestation

China future plan for spacestation after the lost testbed are more and more turning into reality by time. Now with Long March 5/7 success when will China launch its spacestation and how will it differ ...
4
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1answer
395 views

Is China using same technology and approach as other countries in space exploration?

I wanted to know if China has a different approach or methodology for space exploration. China seems really fast in putting their first space station module in orbit compared to the US and Russia. ...
7
votes
1answer
296 views

What does the Yutu rover need to do to prepare for night?

Twitter is abuzz with rumors of the Yutu rover being dead. This article mentions that it might not have been able to prepare for night properly: More details are available from the unofficial ...
10
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1answer
345 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 ...
11
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1answer
1k 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, @...
9
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2answers
549 views

If China wanted to hush the purpose of a space launch, would we be able to infer what they're up to?

This question's title might seem a bit odd, but what I had in mind is that the China's territory is rather large and they could place a launch site deep within its territory. Flow of information is ...
10
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2answers
851 views

How many people work in the Chinese space program?

Yes, I know it's a hard question considering the tight interaction between military and "civilian" space programs and the Great Wall, but it is really interesting to know the scale of the "enterprise"....
11
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1answer
703 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 ...