Re: The Climate, Environment and Energy Thread
Reply #871 –
@dodge
As we push towards nuclear fusion we need helium-3, it will be critical, and compared to earth it's abundant on the moon. That is why China, Europe and the USA want bases there, the rest of the mumbo jumbo, having a pitstop on the way to Mars, a moon based space telescope, communications, etc., etc. are all a smokescreen. They want to mine and most of the mining will be conducted underground. Sth Korea and Japan will join in this venture shortly as well.
If you want to understand night and day or continuous sunlight on the moon read up about lunar liberation, with the moons small tilt axis of only 1.5° it's possible to build small towers on the crater rims at the lunar poles that would keep the sun permanently in the line of sight above the tower's horizon, and because the moon has no atmosphere the sun on the horizon is as powerful as the sun at the zenith, it makes no difference. Low gravity means it's very easy to build towers, and 300m tower needs less strength on the moon than a 2 storey house here on earth.
But if you build that infrastructure on the moon you need it to last, because the cost is about 50,000x more expensive per kilogram to build the same thing there as you would here on earth.