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China's Moon mission sees first seeds sprout

bbc.com

41–50 of 164 posts

Re: China's Moon mission sees first seeds sprout

#41

Hasn't plant growth been happening for a few years in space? Like the salad they grew and ate in ISS. Is this such big news because it's an ongoing step in living in space or am I missing something. Not trying to take away from the achievement but just curious why this is such a big story. I'd thought there would be more news focus on the dark side of the moon updates or astronomy potential of being there type thing.

I suspect if the US had done it, it would be plastered everywhere.

Re: China's Moon mission sees first seeds sprout

#42
post #22
post #19

Earlier quoted context omitted.

Replicators. Feels like no one watches Star Trek anymore. Those writers had more time to think about this stuff than most science labs and engineering teams imho.

>Those writers had more time to think about this stuff than most science labs and engineering teams imho. No, they didn't. They came up with transporters to save money not having effects shots of ships taking off and landing, and replicators are basically the same, a prop meant to save a bit of money while looking "futuristic". Replicators and transporters violate physics (thermodynamics, the uncertainty principle, E…

What would 3D printers look like in 100 years?

Re: China's Moon mission sees first seeds sprout

#43

Earlier quoted context omitted.

Sure, becoming 100% self sufficient wouldn't be a reasonable short term goal but I can't imagine there being any product worth trading in the long term over such distance and given such cost for logistics?

Water possibly could be of great value in the future? Moon has plenty of drinking water. Maybe gold, not sure if there’s gold on the Moon?

Ah yes, the entirely viable project of moving water from a bone dry vacuum rock to a planet 2/3 covered by water.

I'm not sure it would be viable to return gold from the moon even if the moon was made of solid gold.

Re: China's Moon mission sees first seeds sprout

#44

To me it seems that the greatest obstacle to space colonization would be maintenance and production of materials and technology needed to sustain and expand the colony. Seems like the last step for truly becoming self sustaining. You'd need extremely small scale factories that can build everything needed for a modern civilization. I wonder what that would take. What the smallest amount of shipments and time would be.…

NASA have been looking at this almost since the Kennedy speech. e.g. (1989) https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/198900... "Lunar production of solar cells"

(Contains some handy tables of relative abundance of substances at the end. Oxygen is really plentiful, it's just attached to all that silicon and iron.)

Re: China's Moon mission sees first seeds sprout

#46
post #22

Earlier quoted context omitted.

>Those writers had more time to think about this stuff than most science labs and engineering teams imho. No, they didn't. They came up with transporters to save money not having effects shots of ships taking off and landing, and replicators are basically the same, a prop meant to save a bit of money while looking "futuristic". Replicators and transporters violate physics (thermodynamics, the uncertainty principle, E…

What would 3D printers look like in 100 years?

Polymimetic alloys

Re: China's Moon mission sees first seeds sprout

#47

To me it seems that the greatest obstacle to space colonization would be maintenance and production of materials and technology needed to sustain and expand the colony. Seems like the last step for truly becoming self sustaining. You'd need extremely small scale factories that can build everything needed for a modern civilization. I wonder what that would take. What the smallest amount of shipments and time would be.…

And that pesky radiation slowly killing you.

Re: China's Moon mission sees first seeds sprout

#48

Hasn't plant growth been happening for a few years in space? Like the salad they grew and ate in ISS. Is this such big news because it's an ongoing step in living in space or am I missing something. Not trying to take away from the achievement but just curious why this is such a big story. I'd thought there would be more news focus on the dark side of the moon updates or astronomy potential of being there type thing.

What I heard is that we have data on plant growth on Earth (1G) and on the ISS (0G), but not at reduced gravity like on the Moon (.17G).

Re: China's Moon mission sees first seeds sprout

#49

Earlier quoted context omitted.

But why should you have a 100% complete industry, a colony can trade with Earth like countries trade with each other, a colony could trade some rare resources and buy high tech stuff. The main obstacle a colony will have is the initial buildings/bunker with all the life support and safety tech, plus extra redundancy and a backup plan if something bad happens there or on Earth . If the colony would manage to generate…

Sure, becoming 100% self sufficient wouldn't be a reasonable short term goal but I can't imagine there being any product worth trading in the long term over such distance and given such cost for logistics?

I imagine that in the beginning you will have mostly scientific facilities , like telescopes on the dark side of the moon(you will need scientist, technicians and other stuff around this big telescopes).

There could also be facilities for experiments that can't be done on Earth, like things that can grow better on low gravity, there may be materials/gases that are rare on Earth and we could grab from asteroids so having space stations and bases around the solar system would be helpful.

Re: China's Moon mission sees first seeds sprout

#50
post #43

Earlier quoted context omitted.

Water possibly could be of great value in the future? Moon has plenty of drinking water. Maybe gold, not sure if there’s gold on the Moon?

Ah yes, the entirely viable project of moving water from a bone dry vacuum rock to a planet 2/3 covered by water. I'm not sure it would be viable to return gold from the moon even if the moon was made of solid gold.

Yeah that's a good point. At least it could be used locally by the colony then.
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