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Worldbuilding

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  • $\begingroup$ I'm not sure diamond would be stable enough under its own gravity when in the size of a moon. $\endgroup$ Commented Jul 22, 2020 at 0:14
  • $\begingroup$ Don't forget the intricate orbital engineering needed to keep a constellation of large (i.e. visible from the surface) moons in semi-stable orbits without crashing into each other, your planet, or flying into deep space. $\endgroup$ Commented Jul 22, 2020 at 3:05
  • $\begingroup$ @BBeast Yeah, we're definitely talking about Type 2 at least on the Kardashev scale for this sort of thing. A solid pure-gold moon would also be quite heavy compared to most, but that's okay, if we assume the owners of the planet have the resources to acquire that much gold or grow a moon-sized diamond, it's reasonable to assume they've got the orbital mechanics pretty well sorted. $\endgroup$ Commented Jul 22, 2020 at 13:36
  • $\begingroup$ @PaŭloEbermann You might be right, but nobody's asking for hard science on this question. I don't know though - diamond is a pretty densely packed material, maybe it would work? You could also make it a smaller moon, but at a lower orbit so it's still visible from the ground, maybe. (I do like the idea of a diamond eclipse though, that would be pretty amazing to see.) $\endgroup$ Commented Jul 22, 2020 at 13:40
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    $\begingroup$ @Rob Are you referencing this VSauce video from a few years ago by any chance? $\endgroup$ Commented Jul 22, 2020 at 13:47