Venus

The second planet from the sun, Venus was long thought of as a "sister" planet to Earth, being roughly the same size and perhaps having a similar history. However, during the age of expansion, terraformation efforts on Venus ran into considerable problems due to the planet's intensely toxic atmosphere, high pressures and extreme windspeeds. The terraformation attempts were eventually abandoned, but the space stations built in Venus' orbit were not. Today, Venus is used as a large-scale mining and industrial zone operated solely by cyborgs who have had modifications done to resist the planet's deadly environment. Those willing to work on the surface of Venus are amply compensated, as it is one of the deadliest occupations in Sol. Venus's unique environment compared to the rest of the solar system makes it a prime candidate for researching and acquiring rare material and alien microbes. Additionally, the constant high-speed wind makes for an excellent power generator, with enormous turbines spread across the world's surface, collecting electricity and sending it into orbit via microwave.