• felbane@lemmy.world
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    2 days ago

    …but you have to get whatever it is you’re transporting to the moon first

    • Billiam@lemmy.world
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      2 days ago

      As the saying goes, “orbit is halfway to anywhere.”

      Getting into and out of gravity wells takes far more fuel than moving between planetary bodies. A space elevator that can take cargo from lunar orbit to the surface and back removes one difficulty, while being slightly less sci-fi-ish than a terrestrial elevator.

    • SkyeStarfall@lemmy.blahaj.zone
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      1 day ago

      We build the thing on the moon itself

      Sure, it’s mostly barren rock, but it still got useful stuff there, like for example water (hydrogen and oxygen, rocket fuel), carbon and oxygen in the rocks (methane, also rocket fuel), metals (building rockets), and various other elements

      From what I’ve read we know, it’s relatively poor in nitrogen and carbon, so the moon is not as useful as it could have been, but water is really all you need. If you can produce fuel and rocket parts on the moon, it’s about as useful as it can be for space exploration and development

      Since, remember, the alternative is getting those resources either from the surface of the earth (expensive in terms of fuel, and requires powerful rockets, aka bigger ships, also expensive), or from some place further out like the asteroid belt (time consuming). Gravity on the moon is much much smaller, so even if we don’t have a space elevator, it would be far cheaper to use the moon as a starting point, or at least as a refueling point

      https://en.wikipedia.org/wiki/Lunar_resources?wprov=sfla1