Research Note: The Household-Price Target Is an Order-of-Magnitude Test
Published July 2026
Question
"A house price" is not a quote. It is a discipline test. If lunar access is billions today and a household-scale target is hundreds of thousands, the model must show which cost layers require orders-of-magnitude compression and which layers do not move with launch price.
Source-Backed Data Points
- NASA OIG projected a single SLS/Orion production and operations cost of about $4.1 billion per launch through Artemis IV. Source: NASA OIG IG-22-003.
- FRED lists the median sales price of houses sold in the United States at $403,200 for Q1 2026, updated May 5, 2026. Source: FRED MSPUS.
- The U.S. Census Bureau reported the median sales price of new houses sold in May 2026 at $424,900. Source: Census New Residential Sales.
- SpaceX's rideshare page advertises $350,000 for 50 kg to sun-synchronous orbit and $7,000 per additional kg. Source: SpaceX Rideshare.
Reading
The gap is large enough that precision can create false confidence. A $4.1 billion crewed lunar architecture and a roughly $400,000 household benchmark are separated by about four orders of magnitude. That does not mean every line item must fall by the same factor. It means the model must expose which lines are compressible and which are structural.
Launch price can fall and still leave crew systems, lander reliability, life support, mission assurance, recovery, insurance, and regulation too expensive. A rideshare price is useful because it shows what small payload access can look like when payloads are standardized and risk is bounded. A person is not a standardized smallsat.
The target therefore belongs in a scenario table, not in marketing copy. A serious model should ask: what if launch falls 10x, what if fixed crew systems fall 10x, what if lander reuse changes the surface segment, and what still remains above household scale?
Model Rule
CosmosExplore should use the household-price target as a scale marker. Any page that mentions it must show the baseline, the target range, and the non-compressible assumptions that remain visible.