Trezoro is a planet perfect for terraforming. With the right technology, it could have a self-sustaining ecosystem within a thousand years. However, the fastest ship would take over a century to get there. A human could never survive the trip. Instead, an empty ship is sent. When it arrives at Trezoro, the automated systems assemble an orbital station. Robots secure a water supply, begin growing crops, and fire up the artificial womb to begin breeding human babies.