For most of the past two decades, the story of space has been one of access. Reusable launch vehicles, falling costs, and rising flight cadence have turned orbit from a destination reachable by a handful of governments into an operating environment open to startups, universities, and emerging spacefaring nations. The access problem (how to reach orbit affordably and often) is not fully solved, but its trajectory is clear. The harder problem now coming into view is quieter, less visible, and ultimately more consequential: how all of these actors, vehicles, and services will operate together once they arrive.
This is the coordination problem, and the industry is not yet building the shared infrastructure required to solve it.
The Integration Tax
Consider what happens today when two spacecraft need to interact in orbit, a servicer approaching a client satellite to inspect, refuel, or extend its life. But there is no common interface and no shared standard for how the two vehicles recognize, approach, and connect. The client was, in most cases, never designed to be serviced at all. Every rendezvous with a non-cooperative target, therefore, becomes a bespoke engineering problem solved from first principles: estimating the target’s motion, modeling the tightly coupled rotational and translational dynamics of two bodies in close proximity, and designing a guidance and control strategy that works for that pairing and no other.
This is the orbital expression of what I have come to think of as the “integration tax,” the compounding cost paid on every new mission of building custom interfaces because nothing was designed to interoperate. The same tax appears on the ground. As commercial spaceports proliferate across continents, each tends to develop its own range systems, data formats, scheduling logic, and safety frameworks, so a vehicle certified to operate from one site faces a fresh integration effort at the next. We speak of a global network of commercial spaceflight, yet in practice, we have built a collection of islands.
The “integration tax” is insidious because it is invisible in any single program. It hides inside extended schedules, duplicated engineering, and repeated verification. Only when you step back across the ecosystem does the pattern become clear: we are building the space economy one custom handshake at a time, and that does not scale.
Why It Cannot Be Retrofitted
What distinguishes this challenge from interoperability problems in other industries is timing. In space, cooperation must be designed in advance, into the hardware, the standards, and the operating concepts, or it becomes prohibitively expensive, and sometimes physically impossible, to add later. You cannot easily retrofit a docking interface onto a satellite already in orbit or reshape a spaceport’s foundational safety architecture once vehicles are flying from it. The decisions that determine whether the next generation of systems can interoperate are being made now, in design reviews and standards committees, long before their operational consequences become visible. Interoperability, in short, cannot be treated as a downstream integration activity. It is a foundational design choice, and one that the industry is largely deferring to.
From Coverage to Coordination
There is a useful parallel in the adjacent worlds of aeronautical and geospatial data, where shared, identity-driven reference frameworks are steadily replacing the endless reconciliation of mismatched datasets. The lesson generalizes well beyond mapping: the most valuable thing a maturing technical domain can build is a common foundation that lets independently developed systems reference the same reality without ambiguity.
Space needs that foundation across several layers at once. In orbit, it means shared standards for servicing interfaces, cooperative markings, and the data that allows one operator’s vehicle to safely approach another’s. Across the ground segment, it means common frameworks that let a vehicle, payload, or operator move between spaceports without rebuilding integration each time. And underpinning all of it, it means a shared, persistent way of referencing space objects and operations, so that conjunction assessment, traffic coordination, and accountability do not depend on every actor maintaining an incompatible private picture of the same crowded environment.
None of these demands uniformity. It demands interoperability: agreement on the interfaces and references that let diverse systems work together, while competition and innovation continue in the capabilities built above that shared layer.
The Strategic and Security Dimension
For the defense and national-security community, the stakes are especially sharp. Modern military capability is now deeply dependent on space and increasingly conducted alongside allies and coalition partners. Fragmented, non-interoperable infrastructure is not merely inefficient in that context; it is a vulnerability. When partners cannot readily exchange spatial and operational information that their systems can consume directly, every coalition activity risks becoming a bespoke integration project, slowing response and introducing uncertainty at precisely the moments when speed and reliability matter most.
The converse is equally true. Shared standards and interoperable infrastructure are a source of resilience, allowing capability to be reconstituted, augmented, and shared across partners and providers instead of locked inside isolated systems. In a contested domain, interoperability is a strategic asset.
A Wider Door
There is one more reason for these matters, and it is the one I find most compelling. Interoperability lowers the barrier to entry. When foundational interfaces and standards are open and shared, new participants, including emerging spacefaring nations and operators in regions long absent from the space economy, can plug into the ecosystem instead of being forced to recreate it. Equatorial states, to take one example, hold real geographic advantages for launch, but an advantage on the map means little if every connection to the broader system must be custom-built. Shared infrastructure is what converts latent potential into genuine participation.
The democratization of space, in other words, will not be delivered by inexpensive launch alone. It will be delivered by the standards and shared foundations that allow a far wider range of actors to operate within a common system.
The most important question in space is no longer whether we can reach orbit. Increasingly, we can. The defining question of the next era is whether the systems, vehicles, and nations operating there can coordinate and interoperate without paying an ever-rising “integration tax.”
The industry has spent a generation solving the access problem. The organizations and the countries that lead the next one will be those that treat interoperability as the shared foundation on which everything else is built.
