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Published: 2024-03-19 00:36:57 +0000 UTC; Views: 1021; Favourites: 15; Downloads: 0
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The project's taking shape. I spent some time finding plausible candidate planets that would be easy to terraform. Easy, of course, is relative; for our civilization, it would be the hardest thing we've ever done. However, when self-replicating machines that can cover the world come into play, there are some options that become easy, relatively. This is the one I've chosen to focus on, though it's exact layout is not settled.
It's an old world, plate tectonics mininal, though it retains a healthy magnetosphere. It's average temperature is 40 C ish, with liquid water and plenty of water vapor. There is plenty of nitrogen, a fair amount of carbon dioxide, and mininal oxygen. In its long life, the trickle of oxygen produced via water photolysis has largely gone into various metal oxides and carbonates, lending some of its color.
Using a robotic metabolism I've developed, this thing could be terraformed in no time, maybe even within a century. I don't have a pretty graphic for that, but it's essentially metal smelting whose water and carbon dioxide waste is used for artificial photosynthesis, producing organics that are used for carbon monoxide for smelting again. The process produces oxygen, refined metals, and hydrocarbons as outputs, and takes in water. This would make the atmosphere more liveable while producing material for robots at the same time.