Maximum velocity gain from Earth’s rotation and minimal correction of orbital inclination.
Who needs StarRoad, and why
Development Strategy
Energy, orbital data centres, shipyards, settlements and industrial logistics.
StarRoad geography
The route from the mouth of the Nyanga River in Gabon to Mount Mohi and the southern plateau in the Democratic Republic of the Congo is unique:
A comparatively even route through sparsely populated regions of Central Africa.
At 3,400 metres, atmospheric density at the exit is 30% lower, reducing thermal and shock loads.
The East African Rift shows minimal activity in this area.
The route starts by the ocean for manufacturing and shuttle recovery and ends at high elevation.
Preferred route and site
The route from the mouth of the Nyanga River in Gabon to Mount Mohi in the Democratic Republic of the Congo is approximately 2,050 km long. A start on the Gabonese coast provides a near-optimal equatorial orbital inclination of about 3°, giving direct access to geostationary orbit and the Lagrange points while minimizing the cost of interplanetary transfers. The gateway complex is located on Mount Mohi at about 3,400 m, with the broad southern plateau reserved for expansion. The site combines altitude, level terrain, a distance of more than 20 km from settlements and proximity to Lakes Tanganyika and Kivu.
Alternative site
A backup route from Port Kitomb in the Democratic Republic of the Congo to Mount Mohi would be about 1,850 km long and remain entirely within one country, simplifying logistics and legal coordination. It would, however, produce an orbital inclination of about 13°, requiring an additional ~200–300 m/s of delta-v to send cargo to geostationary orbit at 0° or to the Lagrange points. That corresponds to losing about 2–4% of payload mass on every launch. Choosing the more complex international but equatorial route, with an inclination of about 3°, is therefore a strategic decision aimed at maximum economic efficiency throughout the corridor’s service life and direct access to every critical node of orbital infrastructure.
Markets and orbital logistics
This section addresses the central question of StarRoad’s economic feasibility: what can be launched in volumes large enough to utilize a super-heavy launch corridor. StarRoad should not be viewed as a system for rare, one-off missions. Its target is a high-volume, regular, industrial flow of cargo between Earth and high orbits.
StarRoad’s main initial market is not low-Earth-orbit satellite constellations or individual scientific spacecraft, but large-scale orbital energy, computing infrastructure, interorbital logistics, orbital settlements, shipyards and the extraterrestrial industries that follow.
Climate effect of space-based solar power
The climate and industrial logic of space-based solar power stations, including the scale of energy substitution and the conversion of carbon-based energy systems, is explained on the Safety and environment page.
Stages of market and logistics development
Development begins with energy and computing, then expands into a service network, off-Earth manufacturing and Solar System infrastructure.
Problems addressed and cultural impact
StarRoad combines transport, energy, industry, strategy and cultural infrastructure into a single long-term system.
The demand problem for super-heavy launches
Conventional rocket economics is limited not only by cost per kilogram but by the nature of launch itself: rockets deliver cargo in separate small batches, with a high proportion of support mass, complex assembly in orbit and many individual operations. Even when launch prices fall, rocket transport therefore remains expeditionary logistics.
StarRoad creates a different kind of market. Its purpose is not merely to launch today’s payloads more cheaply, but to make possible payloads that never become economically viable under rocket logistics.
These payloads include:
- complete or nearly complete gigawatt-class space-based solar power stations;
- large orbital data centres;
- microwave power-transmission modules;
- large trusses, radiators, mirrors and panels;
- orbital shipyards and automated assembly lines;
- residential and industrial modules for EML4/5;
- interorbital tugs and transports;
- fuel, power and service modules;
- components of future asteroid and interplanetary infrastructure.
StarRoad therefore does not depend on the current space-launch market. It creates a new market, just as railways, container shipping and power grids did more than serve existing demand: they created new economies around themselves.
Initial market: space-based solar power and orbital data centres
In the first stage, StarRoad’s main commercial and strategic cargo should be gigawatt-class space-based solar power stations. These are large, self-deploying or partly self-deploying energy platforms delivered by AstroLiner-S directly to their target orbits or operating locations.
Space-based solar power stations address several needs at once:
- they create high-volume, repeatable demand for super-heavy launches;
- they form an energy market independent of the day–night cycle and most weather;
- they allow a substantial share of new generation to be placed beyond Earth’s surface;
- they provide the basis for powering orbital industry;
- they create an economic reason to build orbital logistics, shipyards and service settlements.
The solar constant at Earth’s orbit is about 1,361.6 W/m². One gigawatt of incident sunlight therefore corresponds to roughly 0.74 km² of perfectly oriented collecting area. With photovoltaic efficiency of 25–35%, conversion and transmission losses, structural gaps, radiators, power electronics, redundancy and degradation, the real collector area for 1 GW of useful electrical output reaches several square kilometres. That is large by conventional spacecraft standards but natural for StarRoad, where mass, area and structural dimensions cease to be the primary constraint.
Mass references for gigawatt-class space-based solar power
A gigawatt-class power station is not a small satellite. Even optimistic contemporary architectures put the mass of a 2 GW station at several thousand tonnes. The lightest concepts, such as CASSIOPeiA, are estimated at about 2,000 t, while more conservative NASA studies give 5,900–10,000 t for an equivalent 2 GW system.
| Project / study | Power | Mass | Relevance to StarRoad |
|---|---|---|---|
| CASSIOPeiA / Space Energy Initiative / Frazer-Nash | up to 2 GW delivered to the grid | ≈2,000 t | The most relevant reference for StarRoad: GEO/GSO, a 99.7% generation factor, a one-satellite-to-one-rectenna architecture and, in the best case, specific power approaching ~1 MW/t. |
| NASA 2024 RD1 / Innovative Heliostat Swarm | 2 GW delivered to the grid | ≈5,900 t | A more conservative estimate. NASA normalizes the system to 2 GW delivered to the grid; RD1 has about 11.5 km² of solar panels. |
| NASA 2024 RD2 / Mature Planar Array | 2 GW delivered to the grid, but through several systems | ≈10,000 t | NASA gives a mass of about 10 million kg and a solar-panel area of about 19 km². Because RD2 generates for less time, five RD2 systems are needed to provide roughly the same energy result as one RD1. |
| JAXA / Sasaki Tethered-SPS | 0.75 GW average / 1.2 GW maximum | ≈20,000 t per system | A heavy reference. Rough scaling to 2 GW of average output gives approximately 50,000+ t, making this a series of flights and orbital assembly rather than one launch. |
| Caltech SSPP / lightweight modular tile | not a complete 2 GW station, but a technology unit | the active layer alone is theoretically ≈1,700–3,400 t for 2 GW delivered on Earth | At 160 g/m² and end-to-end efficiency of 7–14%, this estimate covers only the active layer. A complete station also needs structure, power transmission, attitude control, radiators, cabling, electronics, maintenance provisions and reserves. |
The table leads to the central conclusion: a 2 GW space-based solar power station weighing 2,000–10,000 t fits AstroLiner’s niche almost exactly. For StarRoad, it is one super-heavy launch or a limited number of flights with minimal orbital assembly. Rocket logistics would require tens or hundreds of super-heavy rocket launches, refuelling chains, orbital assembly, towing to GEO or EML and a sharp increase in operational complexity.
Energy yield of one 2 GW space-based solar power station
Using the baseline assumptions:
- power delivered to the grid: 2 GW;
- availability / generation factor: 99.7%;
- design service life: 30 years;
one station produces:
- ≈17.47 TWh per year;
- ≈524 TWh over 30 years.
This makes transport cost per kilogram fundamentally important. Under rocket logistics, launch remains the dominant barrier. With StarRoad, the transport component rapidly falls to a small share of the future energy price.
Transport component of space-solar energy cost
The calculation below covers only the transport component of levelized cost of energy: the cost of delivering the station’s mass divided by its lifetime energy output over 30 years. It excludes station manufacture, the rectenna, maintenance, insurance, module replacement, ground infrastructure and operator profit.
Formula:
Transport component of LCOE = station mass × delivery cost / lifetime energy output
For a 2 GW station with 99.7% availability and a 30-year life, lifetime output is approximately 524 billion kWh.
| Stage / transport system | Delivery cost | CASSIOPeiA-like station, 2,000 t, ¢/kWh | NASA RD1, 5,900 t, ¢/kWh | NASA RD2, 10,000 t, ¢/kWh |
|---|---|---|---|---|
| Current rocket logistics, lower reference to GTO | $3,600–5,600/kg | 1,37–2,14 | 4,05–6,31 | 6,87–10,69 |
| StarRoad, years 1–2 | $80–120/kg | 0,0305–0,0458 | 0,0901–0,1351 | 0,1527–0,2290 |
| StarRoad, years 3–5 | $30–50/kg | 0,0114–0,0191 | 0,0338–0,0563 | 0,0572–0,0954 |
| StarRoad, years 6–10 | $10–20/kg | 0,0038–0,0076 | 0,0113–0,0225 | 0,0191–0,0382 |
| StarRoad, years 11–15 | $3–8/kg | 0,0011–0,0031 | 0,0034–0,0090 | 0,0057–0,0153 |
| StarRoad, years 16–25 | $0.8–3/kg | 0,0003–0,0011 | 0,0009–0,0034 | 0,0015–0,0057 |
| StarRoad, years 26+ | $0.3–1/kg | 0,0001–0,0004 | 0,0003–0,0011 | 0,0006–0,0019 |
For comparison, the LCOE of modern new-build terrestrial generation is several cents per kWh: about 3–4 ¢/kWh for onshore wind, 4–5 ¢/kWh for utility-scale solar PV and 5–6 ¢/kWh for hydropower. NASA’s estimates for terrestrial alternatives in 2050 are approximately 2–5 ¢/kWh.
An important conclusion follows: even during the pilot period, StarRoad’s transport component for space-solar energy is an order of magnitude below the LCOE of terrestrial generation; at mature stages it almost disappears as a principal price factor. This does not mean the total cost of space-solar energy will be thousandths of a cent. Station and rectenna manufacture, servicing, electronics, radiators, module replacement, insurance and operating profit remain. It means that StarRoad removes the specific barrier that makes space-based solar power economically burdensome under rocket logistics.
For present-day rocket scenarios, the full picture is worse than the simple figure of $3,600–5,600/kg. A large station must not only be launched into orbit but also delivered to its operating point, assembled and serviced, while tugs must be refuelled and infrastructure maintained. NASA therefore estimates a baseline LCOE of about 61 ¢/kWh for RD1 and about 159 ¢/kWh for RD2, far above terrestrial alternatives. StarRoad does more than reduce launch cost: it changes the class of the problem by replacing thousands of rocket operations with one or several super-heavy infrastructure flights.
Orbital data centres as the second initial market
Orbital data centres could form the second initial market. The growth of artificial intelligence, cloud computing and digital infrastructure is making data centres a significant component of global energy demand. The IEA estimates that they already consume hundreds of TWh per year and could approach roughly 1,000 TWh annually within the next decade.
Locating part of the computing infrastructure near space-based solar power stations offers several advantages:
- direct access to continuous orbital generation;
- less demand on terrestrial power grids;
- the ability to build large radiator fields in vacuum;
- less dependence on local constraints involving land, water and grid capacity;
- shared energy, communication and service infrastructure with the solar power stations.
During the initial stage, orbital power stations and data centres can be launched as separate platforms or as combined energy-and-computing complexes comprising a solar power station, power electronics, radiators, a computing module, communication antennas and a microwave transmission circuit.
Orbital locations: GEO and EML4/5
The primary locations for space-based solar power stations and related infrastructure are geostationary orbit and the Earth–Moon Lagrange points EML4/5.
Geostationary orbit is well suited to transmitting power to fixed regions on Earth. A satellite or power platform in GEO maintains an almost constant position relative to the surface, simplifying microwave-beam pointing, siting of ground rectennas and integration with regional grids. Geostationary altitude is about 35,800 km above the equator.
EML4 and EML5 are suitable for large settlements, shipyards, industrial nodes and energy clusters. They lie at the vertices of equilateral triangles in the Earth–Moon system and have greater long-term stability than the collinear L1/L2 points. That matters for mass industry: large stations, warehouses, shipyards, assembly trusses and residential complexes can be established there without continuously expending large quantities of propellant for station-keeping.
Using GEO and EML4/5 also reduces conflict with low Earth orbit. Solar power stations and other large platforms need not place enormous arrays in LEO, where they would cause light pollution, collision risks, residual-atmosphere drag and interference with astronomy. Low orbit remains a service zone for capsule descent, intermediate operations, inspection and specific low-orbit tasks.
Initial stage: direct AstroLiner-S flights
The initial stage uses AstroLiner-S, the starting, simplified and lower-risk shuttle variant. It carries no nuclear or fusion power source and uses chemical propulsion for final insertion, correction, deorbiting and return.
The principal goal of the initial stage is to create a primary cargo flow without waiting for all orbital infrastructure to mature. AstroLiner-S must therefore be able to deliver large modules directly:
- to geostationary orbit for installing solar power stations and energy relays;
- to the EML4/5 energy clusters;
- to high-energy orbits for deploying solar power stations and data centres.
Cargoes at this stage are mainly complete or nearly complete structures:
- self-deploying space-based solar power stations;
- power-transmission modules;
- large radiator panels;
- data-centre computing blocks;
- truss structures;
- robotic assemblers;
- initial service stations;
- propellant and working-fluid reserves;
- communication, navigation and traffic-control modules.
Advantages of EML4/5 and GEO over LEO:
- No light-pollution problem from low-orbit satellites.
- Nearly continuous illumination for solar power stations, without a regular day–night cycle.
- A stable position relative to Earth and the Moon.
Key figures for the stage:
- Launch frequency: 1–2 per month, or 12–24 per year.
- Payload per flight: 10,000 t.
- Annual cargo flow: 120,000–240,000 t.
- Delivery cost: $80–120/kg.
- Target orbits: EML4/5 and GEO.
This approach avoids the trap of building all space infrastructure before earning revenue. The first commercial payloads are themselves components of the future infrastructure.
Mature stage: microwave relays and service infrastructure
The mature stage begins when the number of power stations, data centres and large platforms is sufficient to keep an orbital network in continuous operation. The task then expands from launching new stations to servicing those already deployed.
Principal elements of the mature stage:
- a network of microwave relays in GEO;
- permanent service nodes near major energy clusters;
- repair and inspection craft;
- storage stations;
- orbital tugs;
- the first permanent settlements and rotating crews at EML4/5;
- automatic and semi-automatic shipyards;
- an EML1 transport hub.
Microwave relays make it possible to distribute energy more flexibly between regions of Earth, reduce dependence on direct station-to-rectenna geometry and build an energy network rather than a set of isolated orbital power stations. On the ground, the system must include receiving rectennas, conversion substations, buffer storage and connections to regional power grids.
Permanent servicing extends the life of solar power stations. This is fundamental: without servicing, their economics is limited by the life of individual modules. If panels, transmitters, radiators, electronics and trusses can be replaced in orbit, the stations become maintainable energy facilities rather than disposable satellites.
Dividing transport by operating environment
Mature StarRoad logistics is built around separating transport functions by environment, not around one universal spacecraft.
AstroLiner handles Earth-to-orbit and orbit-to-Earth transport. It is an orbital heavy lift vehicle, a return glider and a heavy container carrier, but it should not become a universal interplanetary spacecraft.
Interorbital transports operate only in space. They do not enter an atmosphere and therefore carry no landing heat shield, wings, marine systems or reinforced hull for water landing. Their dry mass is lower and their life longer because they are optimized for travel between orbital nodes.
Specialized capsules descend to planets and return people or cargo to a surface. They should not form part of AstroLiner’s main hull: bringing thousands of tonnes down merely to deliver a small group of people or a small cargo is irrational.
The transport hierarchy is:
| Environment | Primary vehicle | Function |
|---|---|---|
| Earth → orbit | AstroLiner / AstroLiner-S | super-heavy lift of cargo and modules |
| High orbits and L-points | interorbital transports and tugs | transport between LEO, GEO and EML1/2/4/5 |
| Orbit → surface | passenger and cargo capsules | descent of people and cargo |
| Orbital nodes | stations, warehouses and shipyards | storage, assembly, repair and transfer |
This division lowers the dry mass of every vehicle class, reduces compromises and makes space logistics more like maritime transport, with container carriers, tugs, ports, warehouses, shipyards and specialized vessels.
AstroLiner’s role in mature logistics
AstroLiner is not a universal spacecraft. Its primary role is a cyclic super-heavy lift vehicle and a reusable return transport.
It carries upward:
- cargo containers;
- passenger modules;
- propellant modules;
- construction components;
- panels, trusses, cables and radiators;
- interorbital tugs, assembled or in parts;
- descent capsules;
- orbital-station modules;
- components of power stations and data centres.
It returns mainly empty or with a limited return cargo:
- crew;
- samples;
- expensive repairable assemblies;
- retired electronics;
- failed or removed components.
The return configuration should be as light as possible. After completing its mission, AstroLiner’s return mass must be substantially below its launch mass, because safe gliding, atmospheric entry and water landing require minimum residual mass. Returning thousands of tonnes of payload to Earth is not a routine task; specialized capsules or separate return modules handle it.
AstroLiner retains a limited amount of its own delta-v for four reasons:
- independence from infrastructure that is not yet fully deployed;
- the ability to use alternative routes;
- emergency scenarios;
- flexibility in early operation.
In a mature system, however, specialized tugs and transports provide most interorbital delta-v. This reduces demands on AstroLiner, extends hull life and shortens the launch–unload–return–service–relaunch cycle.
Interorbital transports and tugs
Interorbital transports are StarRoad’s permanent space fleet. They operate among LEO, GEO, EML1, EML2, EML4/5 and other nodes without entering the atmosphere or returning to Earth.
Their tasks include:
- delivering modules from the AstroLiner unloading point to target orbits;
- towing solar power stations, data centres and large trusses;
- carrying propellant and working fluids;
- transporting passenger modules;
- servicing and replacing power-station components;
- delivering capsules to service orbits for descent;
- returning empty tugs to EML1 or EML4/5;
- supporting orbital shipyards.
These craft may use electric, magnetoplasmadynamic, nuclear-electric, solar-electric or hybrid propulsion. Because they never need to enter an atmosphere, they can be highly specialized: large radiators, lightweight trusses, large working-fluid tanks, replaceable propulsion units and maintainability at orbital shipyards.
In the mature architecture, interorbital transport is what turns StarRoad from a launch system into a space transportation network.
Descent to Earth and other planets
Specialized capsules perform descent, so AstroLiner need not serve as a universal re-entry vehicle for every task.
Principal types:
Passenger Capsule (PC) — a capsule for people, designed for safe entry, emergencies, autonomous landing and integration with a passenger module.
Cargo Capsule (CCap) — a capsule for valuable cargo, samples, equipment, biological material, electronics and components that must return to a surface.
Industrial Return Capsule (IRC) — a reinforced cargo capsule for returning materials in bulk if such a market emerges at a later stage.
AstroLiner carries the capsules into orbit. Interorbital tugs, or AstroLiner itself during the early phase, transfer them to a service orbit for descent. After separation, each capsule enters and lands independently.
The Moon, Mars, Venus and asteroids use distinct landing systems adapted to each environment. A universal descent craft cannot serve every body in the Solar System because atmospheres, gravity, heat fluxes, dust conditions and launch requirements differ too greatly.
Standardized modules
Standardization is the foundation of StarRoad logistics. Just as maritime containerization changed world trade, standardized orbital modules should transform the space economy.
Basic module types:
Passenger Module (PM) — a pressurized passenger module usable in AstroLiner, an interorbital transport, an orbital station or a passenger capsule. It contains life support, seats or cabins, emergency reserves, docking interfaces and standard attachment points.
Cargo Container (CC) — a pressurized or unpressurized container for panels, trusses, radiators, cables, equipment, robotic systems, spare parts and consumables.
Propellant Module (PrM) — a module storing propellant, working fluid, water, oxygen, hydrogen, argon, xenon or other consumable media for tugs and stations.
Utility Module (UM) — a power, radiator, communication or control module that may include solar panels, batteries, radiators, antennas, converters, heat exchangers and control electronics.
Construction Module (CM) — a construction module containing trusses, beams, frame sections, robotic assemblers, fastening systems, tethers, cable runs and deployable structures.
Power Transmission Module (PTM) — a power-transmission module containing microwave antennas, phased arrays, power electronics and beam-pointing and control systems.
Every module should have standardized:
- dimensional classes;
- structural interfaces;
- robotic grapple points;
- docking interfaces;
- electrical and thermal interfaces;
- digital identity and service records;
- permitted mass and centre-of-gravity ranges;
- emergency securing and separation modes.
This allows stations, spacecraft, power stations and industrial complexes to be assembled as combinations of standard blocks rather than as unique vehicles.
Hierarchy of orbital infrastructure
StarRoad’s orbital logistics is organized as a hierarchy of nodes.
Earth / StarRoad.
Manufacturing, assembly, launch, AstroLiner repair, module production, propellant preparation, energy supply and cargo-flow control.
LEO.
A service zone for descent capsules, inspections, emergencies, temporary operations and capsule separation before entry. In the mature system, LEO is neither the main warehouse nor an overcrowded industrial belt.
GEO.
A zone for microwave relays, energy platforms, communications and power transmission to fixed regions of Earth. GEO is well suited to integrating orbital energy with ground grids.
EML1.
The main transport hub of the Earth–Moon system. AstroLiner can arrive directly to unload modules when a payload does not require a direct flight to its final destination. Warehouses, tugs, traffic control, repair nodes and the lunar-elevator transfer station are located here.
EML1 should be highly automated. A large permanent resident workforce is unnecessary: people can remain in better-protected lunar lava tubes, at EML4/5 or aboard large stations and travel to EML1 when needed.
EML2.
A scientific and observational zone for radio-quiet observatories, deep-space telescopes, test stations, deep-space communications and scientific facilities on and near the lunar far side.
EML4 / EML5.
The principal centres of a mature orbital civilization: shipyards, settlements, industrial stations, large power stations, interplanetary-spacecraft assembly, warehouses, repair bases and control centres for further expansion.
The logistics analogy: space as a maritime network
A mature StarRoad system resembles maritime logistics more than a launch programme.
In this analogy:
- AstroLiner is a super-heavy container carrier between Earth and orbit;
- interorbital tugs are harbour tractors and ocean-going tugs;
- interorbital transports are long-route vessels;
- EML1 is a transit port and distribution hub;
- GEO is an energy and communications roadstead;
- EML4/5 are industrial ports, shipyards and cities;
- capsules are specialized landing craft;
- PM, CC, PrM, UM, CM and PTM modules are containers and functional blocks.
This approach changes the culture of spaceflight itself. Unique missions give way to schedules, container circulation, repair, insurance, standards, warehouses, port traffic control and industrial freight turnover.
Cargo-flow economics
StarRoad reverses the central rule of the space economy. In rocket logistics it is cheaper to save kilograms because every kilogram is expensive. In StarRoad logistics it is cheaper to standardize, mass-produce and launch in large batches.
This changes engineering choices:
- structures can be stronger and easier to repair;
- equipment can include greater margins;
- stations can be designed as serviceable facilities rather than disposable satellites;
- the mass of radiators, shielding and frames ceases to be an absolute constraint;
- large platforms become more economical than many short-lived small craft.
The key economic effect is that StarRoad creates a market for orbital facilities, not merely a launch market. Revenue can come not only from cargo delivery but from participation in the manufacture, ownership and operation of power stations, data centres, relays, tugs, shipyards and energy networks.
Possible commercial models include:
- selling launches to outside customers;
- long-term contracts for energy infrastructure;
- owning and operating space-based solar power stations;
- joint ventures with energy companies;
- leasing orbital data-centre capacity;
- selling power through ground rectennas;
- service contracts for orbital facilities;
- logistics tariffs for interorbital transport;
- insurance, repair and life extension for stations.
This approach reduces dependence on any single market. If outside launch demand is insufficient, StarRoad creates its own cargo flow through energy and orbital-industry programmes.
Orbital shipyards
Orbital shipyards are established primarily at EML4/5. Their purpose is to assemble structures that cannot or should not be launched whole even by StarRoad.
AstroLiner delivers materials and structures to them as flat-pack cargo:
- panels;
- trusses;
- structural profiles;
- cables;
- radiators;
- mirrors;
- membranes;
- tanks;
- load-bearing assemblies;
- robotic assembly systems.
Robots and teleoperators perform assembly. People handle servicing, supervision, complex repairs and exceptional decisions, but should not manually perform most hazardous assembly work.
The shipyards build:
- new space-based solar power stations;
- large radiator fields;
- interorbital transports;
- interplanetary spacecraft;
- residential stations;
- asteroid-processing complexes;
- components of future megastructures.
At this stage, StarRoad ceases to be merely a system for launching from Earth. It becomes the lower link in a production chain in which Earth supplies complex components while space gradually takes over assembly, servicing and part of manufacturing.
Orbital and lunar settlements
Permanent settlements arise not as an end in themselves but from the need to service large infrastructure. Once power stations, shipyards, tugs, relays, lunar production nodes and industrial platforms become numerous, fully remote servicing is no longer sufficient.
The main form of large orbital settlement is a rotating station with artificial gravity, such as a Stanford torus or a derivative. Such stations are placed primarily in stable locations suited to long-term development, including EML4/5, and serve as residential, service, medical, repair and administrative centres for orbital industry.
Permanent staff for lunar bases and industrial settlements should live not on the Moon itself but aboard artificial-gravity stations at EML4/5. This limits long-term health effects from low lunar gravity while keeping personnel close to lunar infrastructure. The Moon then functions mainly as an industrial work site with rotating surface shifts.
EML1 becomes the lunar system’s central transfer and logistics hub. It concentrates warehouses, docks, tugs, refuelling modules, repair facilities and traffic control for flows among Earth, the Moon, EML4/5 and other orbital regions. Keeping personnel near the Moon simplifies shift rotation, emergency response, repairs and control of lunar production compared with repeatedly sending crews from Earth.
A lunar elevator linking the Moon’s surface with the EML1 region is a major component of this architecture. It provides regular cargo and passenger movement between the surface and orbital infrastructure: regolith, oxygen, metals, construction materials and industrial modules move upward, while equipment, consumables and rotating crews move down. It gives lunar industry a permanent connection to orbital shipyards, settlements and interorbital logistics without continual rocket launches from the surface.
Because lunar gravity is low, lunar settlements will mainly be protected industrial bases operated by rotating shifts. They support mining, processing, energy and construction complexes, automated equipment, oxygen production, regolith processing, assembly of lunar-elevator components and preparation of cargo for EML1.
Radiation protection for orbital and lunar settlements uses several layers:
- passive shielding with water, polyethylene, lunar regolith, fuel or technical stores;
- placing the best-protected areas in central and internal sections;
- active magnetic protection to reduce charged-particle flux;
- emergency storm shelters for solar proton events.
Water, hydrogen, polyethylene, fuel and lunar regolith are both useful stores and radiation mass. Protection need not be dead weight when it can be incorporated into the operating cycle of a station, lunar base, lunar elevator or EML1 node.
Evolutionary prospects: StarRoad’s successor
StarRoad need not be the final form of planetary transport infrastructure. It can be viewed as a transitional but necessary stage between the rocket age and mature astroengineering megastructures.
Among the familiar hypothetical systems—space elevator, launch loop, StarTram, orbital ring and space tower—only an advanced orbital ring could ultimately surpass StarRoad in cargo capacity. Such a structure, however, requires an established and powerful orbital industry, vast quantities of material, shipyards, energy, robotic assembly and experience operating megastructures.
A possible successor to StarRoad is a system of two connected rings:
- a transport ring encircling Earth with a low point that meets the surface;
- a geosynchronous port ring and space dock at GEO altitude;
- several moving cable rotors inside sealed shafts in the transport ring;
- a connection between the transport ring and geosynchronous port ring at the trajectory’s high point.
Like a launch loop, the transport ring contains rapidly moving rotors in sealed channels, but it could be safer. Unlike a loop, its moving cable rotors make no sharp turns and experience much lower radial loads; in an emergency break they can be designed to move away from the planet without destroying the whole structure. The transport ring would be a dynamic annular space tower stretching from the surface to the geosynchronous port ring.
This system is not an alternative to the first StarRoad. It is a possible successor. Without StarRoad or a comparable trunk system, the mass, equipment, shipyards and energy capacity needed for an orbital ring cannot be launched cheaply enough.
Planetary-engineering potential: the Solar System as one resource system
StarRoad could eventually open possibilities that now appear unthinkable, including large-scale astroengineering and terraforming. These are late civilizational scenarios that arise only after mature Solar System infrastructure exists: inexpensive cargo lift from Earth, space-based solar power, orbital shipyards at EML4/5, asteroid mining, interplanetary transports, a tanker fleet and autonomous energy for deep-space missions.
The key idea is to treat Venus and Mars not as two independent programmes but as one resource system. Mars lacks nitrogen, hydrogen, a dense atmosphere and magnetic protection. Venus has enormous stocks of CO₂ and nitrogen and Earth-like mass and gravity, but they are locked inside an extreme environment: a temperature around 460°C, pressure around 92 atmospheres, a CO₂ atmosphere, sulphuric-acid clouds, no magnetic field and extremely slow retrograde rotation.
Preliminary stage: Solar System infrastructure
Before planetary terraforming begins, the following must exist:
- StarRoad as a low-cost channel for lifting mass from Earth;
- space-based solar power stations and solar swarms as energy sources;
- orbital shipyards at EML4/5;
- advanced asteroid mining for metals, water and volatiles;
- tens or hundreds of advanced, self-sufficient space settlements and the energy nodes supporting them;
- a tanker fleet carrying hydrogen, water, nitrogen and CO₂;
- nuclear-electric or fusion transport systems for long routes.
A reasonable starting date for such programmes is no earlier than 100+ years after StarRoad begins operation, with possible acceleration if space infrastructure grows exponentially.
Venus: stages of terraforming
Venus may be better suited than Mars to large-scale, long-term settlement: its gravity is about 0.9g, its mass is close to Earth’s and solar energy is abundant. The central problem is its extremely high initial barrier.
- Cooling and CO₂ deposition.
A large sunshade is placed at the Venus–Sun L1 point to reduce incoming energy. Under deep cooling, a substantial portion of the CO₂ becomes liquid or solid and settles on the surface. Pressure falls sharply, changing the planet from a hellish environment into one accessible to engineering and construction. - Quasi-synchronous ring and orbital port
. After cooling, a dynamically supported ring is built about 33,400 km above the surface, at the altitude of Venus’s future 24-hour synchronous orbit. Its circumference is about 248,000 km, local gravity about 0.021g and free circular velocity roughly 2.87 km/s. While Venus still rotates too slowly, active rotors support the ring, which serves as an orbital port, energy node and tanker-receiving point. - Atmospheric processing and hydrogen
imports. Deposited CO₂ is lifted to processing complexes. Hydrogen arrives from the outer Solar System, icy bodies and asteroid resources. The basic CO₂-binding reaction is: - CO₂ + 4H₂ → CH₄ + 2H₂O
- Water is used for oceans and oxygen; methane serves as fuel and chemical feedstock; carbon is bound in materials and long-term stores; and sulphur compounds are converted into mineral forms. Excess nitrogen and some CO₂ can be shipped to Mars.
- Habitable Venus.
Primary terraforming can be considered complete after oceans, a nitrogen–oxygen atmosphere, controlled climate, magnetic or magnetospheric protection and an initial biosphere have formed. Venus can be habitable even during an intermediate rotation period of about 120 hours: nights of roughly 60 hours are moderated by oceans, clouds, a 1.3–1.6 bar atmosphere, heat transport and a system of mirrors and shades. - Orbital correction of rotation and a 24-hour day. Bringing Venus
to a 24-hour period is not a prerequisite for habitability but a prolonged engineering refinement. Moving from its present retrograde rotation to a direct 24-hour period requires an angular-momentum increase of roughly 4.3×10³³ kg·m²/s. At a working-fluid exhaust velocity of about 100 km/s, approximately 1.1×10²¹ kg of working fluid is required. With ideal jet energy near 5×10³⁰ J, 300 EW gives a timescale of about 500–600 years. Allowing for engineering losses and 10³¹–3×10³¹ J of energy extends this to roughly 1,000–3,000 years at 300 EW and several thousand years at 100–200 EW. Two transport rings, symmetrically connected on opposite sides of both the planet and the quasi-synchronous ring, transfer rotational momentum from the ring to the surface. Two rings rather than the single ring used in the Earth and Mars configurations provide additional dynamic stabilization during momentum transfer. Once the 24-hour period is reached, the ring becomes a fully synchronous Venusian dock.
Mars: stages of terraforming
Mars is easier for early bases but harder to transform into a complete planetary environment. Its limitations include gravity of about 0.38g, a thin atmosphere, too little nitrogen, scarce accessible volatiles and weak magnetic protection. Mars therefore needs not only local engineering but imported matter from Venus, asteroids and the outer Solar System.
- Artificial magnetosphere
. Magnetic protection is the first condition for long-term terraforming: orbital rings similar to Earth’s synchronous and transport rings, energy and reflector platforms and magnetic systems integrated into the synchronous ring. Without it, a new atmosphere remains vulnerable to the solar wind and gradual loss. Like Venus’s quasi-synchronous ring, the Martian synchronous ring combines transport and orbital, energy and magnetospheric functions. Integrated solar panels and storage power the ring’s magnetospheric circuit, power electronics and control infrastructure that sustain the planet’s artificial magnetic field. - Importing atmosphere
and water. Nitrogen and part of the CO₂ arrive from Venus; water comes from asteroids, icy bodies and the outer Solar System. Mars is not terraformed in isolation: the shared resource network supplies its missing volatiles. Importing Venusian atmosphere gives Mars a milder, more stable climate sooner than creating and warming an atmosphere solely from the planet’s own resources. - Atmospheric thickening and climate warming.
Once magnetic protection exists, CO₂, nitrogen, water vapour and additional greenhouse agents gradually build the atmosphere. A denser atmosphere offsets part of Mars’s temperature problem, increases heat transport and pressure and expands the regions where liquid water can exist. - Water, soils and biosphere
. Reservoirs are created, regolith is processed, soil toxicity is reduced, and microbial and plant ecosystems begin. Development proceeds in stages: protected local biospheres, then regional climate zones and only later an attempt at global environmental stabilization. - A planet-scale usable
environment. With sufficient nitrogen, CO₂ and water imports, Mars could acquire a dense regulated atmosphere, artificial magnetic protection, water reserves, biologically active regions and large industrial infrastructure. At 0.38g it will probably remain less suitable than Venus for mass, long-term Earth-like habitation, but low gravity brings its own advantages: cheaper ascent and landing, convenient orbital logistics, construction of immense structures, low-gravity manufacturing and a role as an industrial, scientific and transit hub between the inner Solar System and asteroid belt.
Advantage of the combined scenario
A combined Venus–Mars–outer-Solar-System scenario is stronger than either isolated approach. Terraforming Mars alone is constrained by shortages of nitrogen, water, energy and magnetic protection. Terraforming Venus alone requires processing an enormous CO₂ atmosphere without an outside user for the surplus. The shared model turns one planet’s problem into another’s resource: Venusian nitrogen and CO₂ support Mars, outer-Solar-System hydrogen and water support Venus, and asteroid industry supplies metals and construction mass.
In this logic, StarRoad is not a direct terraforming tool but the first link in a causal chain: StarRoad provides inexpensive mass lift; space-based solar stations provide energy; EML4/5 enables shipyards; asteroid mining supplies raw material; a tanker fleet exchanges matter between planets; and only then does planetary engineering become possible.
Strategic conclusion
StarRoad and AstroLiner create a permanent space economy, not a launch programme.
Initial markets are space-based solar power, orbital data centres and energy infrastructure. Mature markets are servicing, repair, power relay, interorbital logistics, shipyards and settlements. The industrial stage creates an asteroid and interplanetary economy. The evolutionary stage opens the way to megastructures, distant missions and the long-term expansion of civilization.
The section’s central idea is that StarRoad does not seek a market within the old model of spaceflight. It creates a new market in which mass cargo flow, orbital energy, computing infrastructure and space industry form one logistics system.
Economic task
Radically lower the cost of access to space so that solar energy, asteroids, lunar resources and eventually planetary resources become economically viable.
Strategic objective
Create a resilient, weather-independent lift system capable of supporting both orbital industrialization and planetary defence.
Technology catalyst
The project will catalyse advances in pulsed power, superconductivity, hypersonics, nuclear propulsion and robotic tunnel construction.
Energy network
GATES and the generating network supply surplus clean energy not only to the accelerator but also to nearby cities, industry and farms.
StarRoad as an economic artery
StarRoad as an economic artery. On one side, StarRoad becomes a planetary cargo gateway for developing the Solar System; on the other, it becomes Africa’s principal economic artery and a catalyst for industrialization, energy independence and food security. The route is not an isolated engineering work running underground to nowhere. Its surface infrastructure—40 terminals, two industrial centres in Gabon and the Democratic Republic of the Congo, a hydrothermal trunk canal and a road network—forms a linear sustainable-development cluster crossing Central Africa from west to east. Along the entire 2,050 km route, a unique alternating eco-technological-agricultural landscape emerges. The linear cluster becomes a self-sufficient economic zone in which:
- energy is generated from geothermal, micro-hydroelectric and solar sources;
- food is grown through irrigated agriculture;
- industrial goods are manufactured, including shuttle components, tunnel modules and equipment;
- freight moves by road and rail;
- a spaceport operates, comprising the launch complex and gateway;
- atmospheric CO₂ is removed at direct-air-capture stations.
Political and legal coordination of a transcontinental project
The route’s passage through three countries is addressed through an international consortium modelled on megaprojects such as CERN and ITER. Underground infrastructure and the energy assets of the Geothermal Autonomous Thermal Energy System receive a special legal status, and benefits are clearly divided among participants. The project is not a burden that presupposes political stability; through mutual interdependence and privileged access to the future and to technologies developed during construction, it becomes an intrinsically valuable instrument for creating and maintaining stability.
Evolutionary growth of cargo flow
Launch frequency grows in step with orbital industry. A pioneer phase of one launch per month creates orbital shipyards; an industrial phase of one to three launches per week builds assets; and a mature phase of daily launches sustains exponential growth in the space economy.
Beyond its technological and economic effects, StarRoad will profoundly influence culture and humanity’s collective consciousness. Every launch will be transformed from a technical operation into a vast public and almost sacred event.
Spectacle as a phenomenon
The shuttle’s hypersonic exit will create a unique human-made astronomical phenomenon: the Solar Arrow. To an observer in a safe area it will appear as an instantaneous flash on the horizon, followed by the rapid ascent of a dazzling plasma trail drawing a straight line across the sky. Tens of seconds later, instead of the familiar roar of engines, a devastating double sonic boom will arrive—the physical sensation of an entire flying city, not merely a machine, crossing the sonic and thermal barriers. Night launches will illuminate the landscape like a moving comet and resemble an unnatural, technological aurora.
Psychological and symbolic resonance
- Tangible scale. An abstract space programme becomes a daily or weekly spectacle visible from hundreds of kilometres away, turning space expansion from a set of charts into a physical fact of life.
- A new archetype. The image of a giant luminous arrow fired by Earth into space becomes a powerful archetype of progress, will and aspiration. In popular culture it replaces the archaic vertical rocket and symbolizes the transition to an age of space transport corridors.
- Unity and pride. Just as Soyuz and Apollo launches once gathered the planet around television screens, regular StarRoad flights become global media events demonstrating humanity’s ability to cooperate on immense goals.
Socioeconomic consequences
- Tourism. Purpose-built viewing complexes at the safe boundaries of the exclusion zone become centres of a new form of space tourism. Watching a launch could rival visiting the ancient wonders of the world in its appeal.
- Educational impetus. The spectacle becomes an unmatched instrument of career inspiration, encouraging millions of children to study physics, engineering and astronautics.
- Demystifying space. The regular, predictable and industrial character of launch removes the aura of exceptionalism and mortal risk from spaceflight and presents it as a normal, though immense, logistics operation.
StarRoad will therefore create not only the physical infrastructure for reaching space but the cultural narrative and emotional foundation humanity needs to accept its new role: a civilization actively building its future beyond the cradle. The regular appearance of the Solar Arrow will be a daily reminder that the road to the stars is not only open but in use.