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Will plants grow on the moon?

85 点作者 dnetesn7 个月前

14 条评论

gardaani7 个月前
Chinese already did a similar experiment few years ago and the result was that &quot;plants can grow on the moon despite the intense radiation, low gravity, and prolonged intense light&quot;<p><a href="https:&#x2F;&#x2F;phys.org&#x2F;news&#x2F;2023-10-china-tiny-farm-moon.html" rel="nofollow">https:&#x2F;&#x2F;phys.org&#x2F;news&#x2F;2023-10-china-tiny-farm-moon.html</a>
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Syonyk7 个月前
I&#x27;ll be <i>very</i> surprised if plants from Earth can tolerate the sort of high radiation environment that is the moon (or space in general, outside the magnetically shielded and atmospherically shielded bubble that is Earth).<p>We tend to forget that the sun is an incredibly powerful and quite unshielded fusion reactor purring away, pushing 1000W&#x2F;m^2 through our atmosphere. It&#x27;s about 1400W&#x2F;m^2 at 1AU (outside the Earth&#x27;s sheltering fields and such) - and most of that difference is some really nasty, ionizing stuff. To the best of my knowledge, the moon is rather outside the Earth&#x27;s magnetic shielding influence.<p>But things will certainly be learned in the process!
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mrec7 个月前
I read the complete short stories of Arthur C. Clarke recently and one of the things that really struck me was that several of the early stories (long before NASA) had lunar-native plants growing wild on the Moon. For a hard SF writer I found that extraordinary; you forget just how much the speculative consensus has changed within quite a short period.<p>In a similar vein, several of the early stories seem convinced by the evidence for psionics...
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cratermoon7 个月前
Spoiler: this experiment is not going to try to grow plants in the lunar regolith. The &quot;growth chamber&quot; will be a hydroponic set up. The focus will be on the effects of unfiltered sunlight and all the various forms of radiation that are not present on earth because of the atmosphere.
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dr_dshiv7 个月前
In a lecture I saw 10 years ago, Freeman Dyson advocated for teaching children to genetically engineer plants. He thought without the playful urge of children, we’d never be able to create “warm blooded” plants capable of surviving on asteroids and the moon. He pointed out that there is a greater surface area on the asteroid belt than all the planets.<p>I still don’t know how he’d deal with atmosphere, but I love the vision. And, I learned that there are some exothermic plants, like Skunk Cabbage, that can chemically regulate their body temperature.<p>Like I said, I love the vision.
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jmyeet7 个月前
There are a bunch of challenges to growing stuff on the Moon. The low gravity, the lack of defense from ioizing radiation that we have on Earth and, perhaps most importantly, the day&#x2F;night cycle.<p>The Moon is tidally locked with EArth so the da&#x2F;night cycle is 28 days. Anywhere other than the poles and you&#x27;ll have ~2 weeks of darkness every month. This affects how you can potentially generate power (ie it complicates solar power generation) but also plant growth. Ideally you want the plants to grow with passive light (ie light from the Sun) because that&#x27;s &quot;free&quot;. So any experiment should try and find out how plants do if they get 14 days of straight sunlight followed by 14 days of straight darkness.<p>There are some plants you could grow in 14 days of sunlight even if nothing useful can survive the darkness (which, I believe, is unknown). You can spend energy to create light or you can use fiber optic cables to essentially passively pipe light around. I don&#x27;t know if you can get the right wavelengths you need this way or if it&#x27;s economically viable.<p>As for radiation, it&#x27;s less of an issue for plants but could still be an issue. It&#x27;s worth finding out. But there are ways you can reduce this. You&#x27;re going to need something transparent to get sunlight in. You can filter UV rays out to some degree depending on your material. You can even put water between the plants and the sun (ie a water tank between the plants and the Sun).<p>Or if you can pipe sunlight around fiber optic cables you don&#x27;t put your plaants on the surface at all. Your pressurize lava tubes instead.<p>Or if energy becomes so ridiculously cheap that none of these are any problem at all.
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sfink7 个月前
I&#x27;m surprised that they chose 3 pretty complex plants. The duckweed seems like the best idea, but wouldn&#x27;t it be more useful at this point to be experimenting with more primitive components of an ecosystem rather than full-fledged plants? Like algae and fungus and phytoplankton. It just seems like the question of whether a plant can survive and grow at all on the moon is not that different from whether a human can survive on the moon, and we already know that humans do pretty ok for limited time as long as you keep them in their spacesuits. I guess this is just figuring out what is required for a &quot;plant spacesuit&quot; to start working on extending how long one can last.<p>I guess it&#x27;s a top-down vs bottom-up philosophy, or something. I mean, even starting with phytoplankton, we&#x27;ll have to provide missing nutrients. So it&#x27;s not like you can just genetically engineer phytoplankton into terraforming the moon on their own. Unless you can figure out how to genetically engineer in a little nuclear reactor so the plants can produce their own missing elements...
wakahiu7 个月前
Do such kinds of experiments confound our search for extraterrestrial life? Mars and moon missions could introduce tiny life forms, that could be released into the environment. Some of these are extremely hardy (such as tardigrades) which could then start proliferating when conditions are right.
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aussieguy12347 个月前
To grow plants anywhere, its important to remember that soil is not required and they can be grown entirely in water. I&#x27;ve done it several times with Kratky method hydroponics and no soil at all.
jbverschoor7 个月前
No plants, just mold or fungus.. It&#x27;s made of cheese.
iambateman7 个月前
Prediction: the plants will do exactly as well as the $7 IKEA plants I compulsively buy and then watch die.
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sampo7 个月前
People have been growing plants in space stations since 1982. I don&#x27;t see how growing plants in an isolated greenhouse on Moon would be much different.<p><a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Plants_in_space#Space_station_era" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Plants_in_space#Space_station_...</a>
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0xDEAFBEAD7 个月前
Has the moon been verified as sterile? Might be good to be sure of that before introducing life to it.
hasnain997 个月前
we have bring plant to the moon