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Al_
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Should it be on the farside to get radio silence for radio telescopes and explore there, or should it be at the pole for the ice, or in a cave?
gleem said:Jeff Bezos of Blue Origin thinks the rim of the Shackleton Crater at the south pole is a good spot. Ice is expected in the shadows of the rim and the rim has almost perpetual sun light for solar cells.
Why recently hit? That doesn't make it less likely to be hit again.Fervent Freyja said:A place where the base is statistically less likely to be bombarded by large meteors? If it's really in random locations, then maybe a location recently hit.
Isn't the north pole also in almost perpetual sunlight?gleem said:Jeff Bezos of Blue Origin thinks the rim of the Shackleton Crater at the south pole is a good spot. Ice is expected in the shadows of the rim and the rim has almost perpetual sun light for solar cells.
newjerseyrunner said:The first one on the ground will probably be located near lots of raw materials right near the surface. Automation will likely construct the base for us before anyone gets there.
Is lunar orbit a possibility for the first one, or do we have to be underground to deal with the radiation?
I'm fairly certain that anything that'll stop a cosmic ray would stop a small meteoroid. Remember, any human base would have to be either underground, or covered in very thick shielding. I would think that either would be sufficient to block sand grain sized projectiles.gleem said:What is has not been discussed very much is the hazards of meteoroids. With no atmosphere to burn them up all meteoroids will strike the surface. At speeds of 10's of thousands of mph they will carry quite a punch even tiny ones. The ISS has only been hit only a couple of times and by really small meteors so the strike frequency may be very2 small . However there are currently programs to determine strike rates on the moon at least those that you can see by their flash on impact. One of Jeff Bezos projects when he lands his robots on the moon is to locate the lunar rover. It will give some needed info on impact rate given that it has been there for over fifty years. None the less any colony on the moon will have to take meteoroids more seriously than down here on Earth particularly the bigger ones for like in horse shoes close will count.
newjerseyrunner said:Remember, any human base would have to be either underground, or covered in very thick shielding. I would think that either would be sufficient to block sand grain sized projectiles.
If it's in orbit, it would need a lot of shielding. Maybe use Moon rock? That needs rockets to lift it off the Moon, and rocket fuel that could come from Lunar Ice. https://nssdc.gsfc.nasa.gov/planetary/ice/ice_moon.htmlnewjerseyrunner said:The first one on the ground will probably be located near lots of raw materials right near the surface. Automation will likely construct the base for us before anyone gets there.
Is lunar orbit a possibility for the first one, or do we have to be underground to deal with the radiation?
Is it easier to have robots dig and transport the ice to a base in a cave, or have them pile lots of dirt on the roof of a base at the poles?OmCheeto said:I interpreted the OP's question as; "Where should the first 'human' moon base be?"
But as I said earlier; "I agree". This time with your "Automation will likely construct the base for us before anyone gets there" statement.
Sending a boatload of miniature 3-D printer bots to get things ready for us is the best plan of action, IMHO.
And that location will be at one of the poles, as humans being water based, seem to have a serious addiction.
I don't know any robots, so I don't know what would be easiest for them.Al_ said:Is it easier to have robots dig and transport the ice to a base in a cave, or have them pile lots of dirt on the roof of a base at the poles?
I don't know anything about moon geography, so I can't even make a guess.OR a third option: a place with very porous ground that's easy to dig into: https://phys.org/news/2017-03-young-looking-lunar-volcano-true-age.html
skystare said:The cheapest way to launch space station shielding mass into orbit is with a magnetic catapult. Lunar iron for the shell, fill with rock. Only a tiny bit of fuel needed to raise the perilune if the package isn't intercepted on the first pass. High-G cargo like rock, LOX, refined metals, etc. can use quite a short catapult, more delicate stuff including humans will need a 20 or 30 km launcher to keep Gs survivable. Not an early infrastructure, but economically compelling as the enterprise grows.
Best location is likely near the equator, but a polar launcher might be justifiable.
Al_ said:Should it be on the farside to get radio silence for radio telescopes and explore there, or should it be at the pole for the ice, or in a cave?
I didn't know that dust was a problem on the Moon.nikkkom said:The Moon actually isn't a particularly good place for any kind of telescopes: the dust is problematic.
Sure, you can design countermeasures, but why bother? If you can build a Moon base, you can surely just send telescopes to space - the best place for them.
I think it may have been my 4 years on a nuclear powered submarine that makes me think the idea of a moon base is quite plausible. (Even though I don't remember how 90% of that stuff, that makes it all possible, works. I just know that it does.)rootone said:( I don't think submarines count)
If you are shooting for a low lunar orbit, you are limited to a few possible inclinations for stable ones. (due to the various mascons buried beneath the Moon's surface.) These so-called "frozen orbits" are at inclinations of 27, 50, 76 and 86 degrees( it wasn't until 2001 that these were discovered; up until then it was thought that there were no stable low lunar orbits.)OmCheeto said:note: These numbers are for a surface orbit. I'm not really sure where the best lunar orbit is, so I didn't bother calculating the extra energy to get there.
skystare said:Lunar dust is indeed a problem - does anyone know how high it levitates? Would the top of a 10 or 20 metre pole be sufficient to keep a PV panel clean? Quite a flimsy structure would suffice with no wind to consider.
The one that was constructed above the Seas of Earth, didn't work out all that well either. Remember Biosphere 2 ...?rootone said:We have not yet even constructed a permanently inhabited colony under the Seas of Earth...
The best location for a Moonbase would be near the lunar poles, specifically the south pole. This area receives almost constant sunlight, making it ideal for solar power. It also has areas of permanent shadow, which could be used to harvest water and other resources.
The south pole of the Moon is preferred over the north pole because it has more areas of permanent shadow, which can provide a source of water and other resources. The north pole has more rugged terrain and is exposed to more extreme temperature changes.
The Moonbase will most likely be powered by solar energy. As mentioned, the lunar poles receive almost constant sunlight, making it the most reliable source of energy. Other potential power sources, such as nuclear power, are also being considered.
Some of the factors being considered in choosing a location for the Moonbase include access to resources, such as water and minerals, availability of sunlight for power, terrain and topography, and potential hazards such as radiation and micrometeoroids.
There is currently no set timeline for the establishment of the first Moonbase. NASA has plans to return humans to the Moon by 2024, and establishing a permanent presence on the Moon is a long-term goal. It will likely depend on funding, technological advancements, and international collaboration.