4 ms·
H2O isn't exactly rare in the universe, it's the third most common molecule after H2 and CO. Getting water into orbit is absurdly expensive compared to getting
by squirrelicus 8y ago
H2O isn't exactly rare in the universe, it's the third most common molecule after H2 and CO. Getting water into orbit is absurdly expensive compared to getting it from the other rocks with lower gravity and atmo, like Ceres.
Weird premise for a movie
- PaulHoule 8y agoExactly, H2O is rare on rocky planets. It makes more sense to mine it from Pluto.
- onychomys 8y agoOr to just go to the rings of Saturn, which are mostly water ice, and which give you the added advantage of having something pretty to look at while you refuel.
- PaulHoule 8y agoExactly, go outside the frostline and you are swimming in it. If you want to get away from it (or move it around) you can use some of it to make fuel or use it directly as reaction mass. Beyond the frost line the scale is so much bigger. A population of 1 trillion beings in the Oort cloud is not going to be in a position of taking over the Earth and moving population there because it doesn't move the needle. They could create more "living space" by cutting up a Kuiper Belt Object and turning it into small ringworlds. I am not joking when I talk about Pluto as a better space colonization target than dry Mars. Space technology from outside the frost line would have to be reconfigured to work inside the front line, why bother?
- TeMPOraL 8y agoIt's a weird premise indeed, and I've seen it only in two places - as an in-movie speculation I mentioned, and as something the director alluded to[0]. Personally, I've discarded it in my headcanon - as it makes little sense, and one can imagine alternative explanations. -- [0] - https://screenrant.com/battle-los-angeles-comiccon-2010/ https://screenrant.com/battle-los-angeles-comiccon-2010/, C-f water.