Space is expensive because almost every necessity must first escape Earth’s gravity. A permanent settlement adds a harsher requirement: the flow of equipment has to become a local capacity to repair and eventually reproduce the equipment. Sending a water processor is a mission expense. Building the workshop that can make its failed valve is the beginning of an economy.
The scale is already substantial before settlement begins. NASA’s inspector general projected the Artemis campaign would cost $93 billion from fiscal year 2012 through 2025, and estimated a single Space Launch System rocket under a proposed services contract at $2.5 billion. Those figures describe one government architecture. Reusable launch vehicles and competition can lower costs. The current bill still shows how much industry stands behind a few days beyond Earth.
From cargo to capacity
Early bases will import high-value machines and the parts most difficult to make locally. They can use lunar or Martian material for shielding and gradually produce oxygen or fuel. NASA has studied in-situ resource use on Mars because every kilogram made there reduces what must be carried from Earth.
Self-sufficiency recedes as one approaches it. A settlement that prints a pipe may still import the printer and its electronics. Complete independence would require a remarkable industrial ladder, from mining raw material to making precision instruments. Resilience is the useful threshold: a broken shipment should remain a problem rather than become a death sentence.
A large terrestrial economy can support this patient buildout more easily. It supplies taxpayers and customers while absorbing failure. It also creates markets large enough for a company to improve a launch system for many users instead of building a beautiful machine that flies once. A shrinking economy may remain wealthy per person, as the previous chapter explained. Its older voters and tighter public margins will still have good reasons to prefer a hospital today over a refinery on the Moon whose payoff belongs to their grandchildren.
The present has real claims. Elder care and planetary repair are necessary work. The space project becomes sustainable when it grows from abundance rather than consuming the conditions of ordinary flourishing on Earth.
What machines change
Automation should go first. Robots can prepare a landing site before people arrive and keep working through radiation that would limit a crew. Autonomous systems can inspect a leak while the nearest human instruction is minutes away. They reduce the number of people exposed and make each settler more capable.
Machines extend the demographic foundation. They have supply chains and designers. An artificial intelligence may diagnose a failed pump, but the settlement still needs authority to decide whether scarce power goes to the repair. When circumstances escape the training data—and they will—human judgment has to carry the consequence.
The economics of settlement gradually changes from transport to inheritance. A thriving project eventually outgrows a heroic annual appropriation or one founder’s fortune. It needs local production and people who expect the settlement to exist after they are gone. That expectation is economic, though it begins as confidence in a future generation.
Citations
- NASA Office of Inspector General, NASA’s Transition of the Space Launch System to a Commercial Services Contract, IG-24-001, 2023.
- NASA Technical Reports Server, Mars ISRU for Production of Mission Critical Consumables: Options, Recent Studies, and Current State of the Art, 2015.