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Really? I haven’t read it but have been told I should. They spin the moon?

You can mimic the same effect with a DSLR camera. Take a shot of anything with the aperture wide open, let's say say f1.2. Then without changing anything else, tighten the aperture to f5.6 or higher and the image will be WAY darker.

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So, exactly what I said, miscategorizing costs.

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Engine development is part of F9 vehicle development.

You should actually read that link. That $300 million figure is for Falcon vehicle 9 development. It does not include Dragon development, engine development, or building launch sites and factories.

You are thinking about the COTS contract that included developing Falcon 9, developing Dragon, and multiple launches.

I too have read the expanse

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It's fine, I'm not interested in seeing Uranus. Ever. Especially not with a telescope or binoculars.

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Counter-point: Who would want to relocate to Alabama if they are already living in Colorado?

True. They are, I think, basically glass beads with pores to sequester adsorbed water, and so are largely chemically inert.

Yes, human eyes are amazing - but note that they cannot observe both phenomena at the same time. In sunlight, your irises constrict a lot and it's still dazzling - under a night sky they quadruple in diameter, so that's an 16:1 ratio when they fully dilate to when they fully constrict.

I doubt you could be able to gather enough light to see stars at full constriction, and your retina would be utterly overwhelmed if you tried viewing the sun with a fully dilated iris.

Hmmm, that's odd--I tested it and it was broken for me too, but I just tried again and it seems to be working. Maybe it was temporarily down?

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One acre of land covered with water one foot deep. One step short of just calculating total volume. Much simpler to work with for the farmers.

If you don’t mind me asking, What kind of better localize events?

Plants generally capture water through their roots which typically spread evenly in all directions, water travels down through the soil until it hits a ledge then travels along its path (called percolation.) That means a rough measure of the amount of water is plenty to guage requirements for shallow rooted plants, like most food crops. An acre is a measure of area and a foot is a measure of length, combined those give the 3 dimensions to make volume. Water is sold by volume, and for agricultural purposes that is the measure it is sold by to farms (typically.)

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What's weird about the moon, is there is no atmosphere, so, it's like having no water for things to float in. Things that might normally float here, like water vapour, would just fall to the ground on the moon, and only float over whatever else happens to be down there from the explosion.

I'm not sure how useful your system would be though. I feel like the amount of time and energy you'd need to spend melting the regolith and collecting the gasses and whatnot, might be excessive in comparison to the amount of water you'd get. Also, I'd imagine you'd get different results from different impacts. Some impacts might be quite water rich, and others no water at all. But even the water rich ones, might not be rich enough for this to be a viable method of collecting enough water for anything.

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What is sinter?

But a foot is a measurement of length isn’t it? Why would you describe a volume of water using feet?