Domesticating the solar system's most violent natural process into the engineering tool that carries humanity out of the cradle.
A staged, fifty-year pathway to the first kilometer-scale rotating habitat built almost entirely from asteroid material — 1 g of gravity, meters of natural rock shielding, and more than 99% of its mass never launched from Earth.
A city with 1 g of gravity, aggregated in place from asteroids.
UB's end state is a rotating habitat of roughly kilometer scale at Sun–Earth L4 or L5: 1 g of artificial gravity on its interior surface, a closed-loop ecology supporting a permanent population of ~1,000, and 2–3 meters of native asteroid rock providing radiation shielding equivalent to Earth's atmosphere. Earth supplies only complexity — machines, chips, seeds, and people.
The entire asteroid belt is ~3% of the Moon's mass. Gravity must come from spin — at the ~2 rpm comfort limit, 1 g requires a radius of ~225 m.
Bodies merge only at or below escape velocity — centimeters per second. Aggregation is rendezvous-and-capture engineering, already demonstrated in orbit.
Gravitational keyholes, flyby cascades, and decades of micro-thrust cut required Δv by orders of magnitude. Early planning is the enabling physics.
All assets stage at L4/L5 and lunar DRO under a verifiable two-maneuver separation rule — no trajectory can threaten Earth without months of visible warning.
Why not launch it from Earth?
At even an aggressive future launch price of $150/kg, shielding mass alone costs ~$42 trillion and ~2 million heavy-lift flights. A single 500–650 m C/S-type asteroid is that mass — already in orbit. Earth's role is to launch what is light and precious; the asteroids supply everything heavy.
Each market funds and flight-proves the next.
UB never asks anyone to fund a fifty-year vision. The same capability stack is sold at four successive distances, each a standalone business.
Orbital debris recycling
Capturing a derelict stage is the same operation as aggregating an asteroid — in a forgiving orbit, with paying customers today.
Asteroid-resource wholesale
Relocate whole 10-m-class bodies to a cislunar ore parking lot, for extraction companies to work at their doorstep.
Volatile delivery (IAT)
Mars cannot warm itself with its own CO₂. Directed delivery of volatile-rich small bodies supports lunar and Mars development.
Deep-space rapid-response reserve
Pre-positioned mass and propulsion for planetary defense — readiness sold as a service, governed by verifiable physics.
Five phases. Two decision gates. One target.
Foundation
Incorporation, peer-reviewed publication, Engine-1 commercial entry.
10-m demonstration
Humanity's first controlled aggregation, at cm/s in lunar DRO.
100-m prototype
First crew aboard ~2043; five years of 1-g human data.
Kilometer-scale aggregation
Core body plus continuous feedstock at L4/L5; spin-up to 1 g.
Habitation & closure
Population ramp to 1,000. UB Station One — full operation, 2076.
Explore the full roadmap, its decision gates, and the dual-speed model behind the dates → Roadmap
UB sells no heroics at the moment of crisis; UB sells what is already in orbit when the crisis arrives.
Why now?
Demand for deep-space mass can appear in a single news cycle — an impactor warning, a lunar construction boom, a Mars program that needs volatiles. The capability to meet it is an integral: target catalogs, flight-proven capture systems, staged reserves, trained organizations — decades of accumulation that cannot be compressed after the motivation arrives.
This is UB's governing doctrine: planetary-scale capability must be built before the motivation for it, because it cannot be built after.
Chaos is the lever by which a small civilization moves planets.
In a chaotic system, a small force applied at a sensitive point purchases a planetary-scale outcome — and orbital mechanics is the largest chaotic system within human reach. The name is not a metaphor. It is the thesis.
The butterfly leaves the garden.
Every Program document is released open: copy, adapt, build, commercialize — with attribution. Follow the major milestones by mail.