Mercury: The Stepping Stone to Greatness
Geography
The planet is covered with harsh terrain consisting of dunes, badlands, mountains, ravines, and city-sized craters. Due to having no atmosphere, the temperature of the planet varies wildly depending on which side you are on. The side facing the sun is scorching hot, nearly 430 degrees Celsius, while the other side is bitterly cold at nearly -185 degrees Celsius. The planet's rotation has artificially been reduced by nearly 10x due to the introduction of artificial moons and strategic bombardment of the surface with asteroids, making a thin "twilight zone" of habitable space -where the light of the sun meets the darkness of space on the other side. This makes a perfect spot for mobile habitats and mass drivers to be situated.
Mining Crags
Across the planet, massive, uniform ravines of slagged regolith are scathed into the surface. Across the horizon as one looks down the length of these crevasses, immense pillars of light soar into the sky, emitted by blindingly bright orbital installations. These formations are referred to by the locals as "Mining Crags," and are the result of massive orbital mirrors burning away the planet's surface in a processes called "Melt-Mining."
These beams of light are directed at areas of the planet's surface that are particularly resource-rich, scathing away immense areas of the surface through the vaporization of unwanted stone. The resulting craters, valleys, and ravines appear as uncanny semi-uniform scars on the planet's surface.
Localized Phenomena
Natural Resources
History
Ever since the proposal of creating a Dyson sphere around the sun, Mercury has been a popular candidate for mining materials for this project, as other nearby planets are far larger making supply launches more energy intensive, and asteroids are simply too far away. The only issue was the temperature... The idea of deploying orbital habitats was considered, however fully autonomous mining installations that operated on planets were highly experimental at the time, and were only ever used for mining asteroids. Besides, having to constantly move mass drivers and production facilities was impractical. That is: until the advent of space rending technology. It would be simple to warp asteroids into the orbit of the planet, causing gravitational shifts due to the planet's small size, as well as opening the door for precise bombardment of the planet. Not only did this stabilize the planet's rotation, but it also slowed it down tremendously. The asteroid impacts had the added benefit of displacing billions of tons of material from within the planet's crust: perfect for mining. With a stabilized and slower rotation, the planet was ripe for habitation outpost, orbital refineries, and mobile mass drivers. Mercury now supplies over 90% of all raw materials to the FTS' Dyson sphere.
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