• Cocodapuf@lemmy.world
    link
    fedilink
    English
    arrow-up
    5
    ·
    21 小时前

    Eh… I think they should stick to solar power. Given how much trouble they’ve been having, let’s not give them any weapons grade isotopes…

    For what it’s worth, just last week, Firefly stuck the landIng on their first attempt. They’re seriously killing it these days, I’m happy for them.

    • over_clox@lemmy.world
      link
      fedilink
      English
      arrow-up
      3
      arrow-down
      1
      ·
      21 小时前

      Solar power? On the south pole of the moon?

      That would just barely work on its own, even if the thing didn’t topple over.

      • Cocodapuf@lemmy.world
        link
        fedilink
        English
        arrow-up
        2
        ·
        edit-2
        19 小时前

        Would it barely work, or would it always work?

        If you plan to land on the pole, at a high altitude, you could potentially have direct line of sight to the sun 24/7 all year round. From the ground, the sun would appear to travel left to right along the horizon, making a full circle over the course of a month. You just need your solar panels pointed to the sides, not up.

        However, if they aren’t directly on the pole, they could still plan their landing to be in a location that gets sunlight for 15 earth days straight, with 0 interruption. As that might be more than the necessary time period for their experiments, that’s probably perfect. And that doesn’t even require being at a high elevation.

        Also, being on the pole doesn’t result in dimmer sunlight than on the equator like it would on earth. No atmosphere means the poles get the same completely unfiltered sunlight.

        Look, the vast majority of lunar landers (and there have been quite a few) have used solar power, it’s the obvious choice in space.

        • over_clox@lemmy.world
          link
          fedilink
          English
          arrow-up
          1
          ·
          edit-2
          19 小时前

          Nah, solar is the obvious choice in space near the sun, and by not borking it up by landing sideways in a crater on the south pole of the moon.

          Very limited scope for solar power, it don’t work after landing sideways in a crater on the south pole.

          Edit: By the way, our next lunar eclipse is in 6 days, do you really think that thing would go uninterrupted, even if it did land correctly?

          • Cocodapuf@lemmy.world
            link
            fedilink
            English
            arrow-up
            1
            ·
            edit-2
            10 小时前

            We are in space near the sun… And we have successfully used solar as far out as Jupiter.

            Haha, no I didn’t account for lunar eclipses, but that lasts what, 2 hours?

            But yeah, not falling over definitely improves the whole mission. No argument there.

      • Cethin@lemmy.zip
        link
        fedilink
        English
        arrow-up
        1
        ·
        19 小时前

        I don’t think it’d matter much. On earth the poles get less light, even in summer, because the angle of the sun is low so it has to pass through more atmosphere. This isn’t true on the moon, obviously. The angle will be really low on the south pole, but as long as it’s in sunlight it doesn’t matter where it is. There are locations on the poles of the moon that never get sunlight, but I suspect it wasn’t going there.

        • over_clox@lemmy.world
          link
          fedilink
          English
          arrow-up
          2
          ·
          edit-2
          19 小时前

          It landed sideways like 250 meters away from the intended landing zone. Did you know the moon has way more craters than Earth?

          Craters = Shadows

          The thing ain’t got no sunlight yo, and its laying sideways in the shade, so no power…

          • Cethin@lemmy.zip
            link
            fedilink
            English
            arrow-up
            1
            arrow-down
            1
            ·
            13 小时前

            I’m pretty sure they didn’t expect it to land sideways. Yeah, there are a lot of craters. They can be avoided. Check out how Firefly’s guidance system was able to change landing locations to avoid hazards.

            • over_clox@lemmy.world
              link
              fedilink
              English
              arrow-up
              1
              ·
              13 小时前

              I don’t need to check Firefly’s guidance system. The Athena team should check into that though, apparently this is their second similar failure.

              Send them the email, not me, I’m just a nobody.

              • Cethin@lemmy.zip
                link
                fedilink
                English
                arrow-up
                1
                arrow-down
                1
                ·
                12 小时前

                I meant check it out if you want to be informed. Otherwise, why comment if you’re admitting you are wilfully ignorant?

        • over_clox@lemmy.world
          link
          fedilink
          English
          arrow-up
          1
          ·
          19 小时前

          Also, our next lunar eclipse occurs in the next 6 days, how the fuck they expect that to work on solar power in the first place even if it did land correctly?

          • Cethin@lemmy.zip
            link
            fedilink
            English
            arrow-up
            1
            ·
            13 小时前

            I’m certain they were aware of that. They got to the fucking moon. They aren’t stupid.