Space Realism: Sovereignty beyond Earth

Space as the next frontier of power

Geopolitical competition is not only reshaping control over energy systems, commodity supply chains, and industrial capacity. Sovereignty is increasingly defined by the ability to secure and operate the physical foundations of economic and military power. That logic does not end at Earth’s surface.

It extends upward.

Space, once framed primarily as a scientific and cooperative environment, is becoming a new layer of global competition. The same forces reshaping terrestrial geopolitics—fragmentation, militarisation, resource competition, and technological decoupling—are now reshaping activity beyond Earth’s atmosphere.

This transition is already underway. Military space budgets continue to expand. Satellite constellations are being deployed at unprecedented scale. Electronic warfare capabilities increasingly target satellite systems. Major powers are developing technologies designed to ensure continuity of their own capabilities while degrading those of adversaries.

Satellite networks have become contested terrain.

This shift reflects a broader erosion of cooperative assumptions that governed space during the late 20th century. The 1967 Outer Space Treaty emerged under conditions of relative geopolitical stability and envisioned space as a shared commons. Today, those assumptions are increasingly detached from geopolitical reality.

Anti-satellite tests conducted by major powers demonstrated the ability to disable satellites directly. By 2025, more than 36,000 debris objects larger than 10 centimeters were being tracked above Earth, each capable of disabling active satellites. Congestion beyond Earth is rising alongside deployment, and satellite systems are now viewed through the same lens applied to energy networks, semiconductor supply chains, and industrial capacity.

Control over orbit enables communications, navigation, intelligence, and financial synchronisation. These systems support both military operations and civilian economic coordination. As dependence deepens, these networks become inseparable from national resilience itself.

Orbital control and the architecture of sovereignty

Satellite networks underpin core military and economic functions. They enable global force coordination, surveillance, navigation, and secure communications. Without them, modern military effectiveness would degrade rapidly.

Military investment reflects this dependency. The United States Space Force budget reached approximately $30 billion in fiscal year 2026, with comparable expansion underway in China and other major powers. Satellite communications networks have already demonstrated their critical importance in contested environments, enabling continuity even when terrestrial systems are disrupted.

The implications extend beyond defense. Navigation systems synchronise global logistics. Satellite timing signals underpin financial transactions. Communications constellations provide redundancy for ground-based networks. Disruption to satellite networks would propagate across multiple layers of economic activity.

States are responding by developing independent satellite systems. The European Union’s IRIS² constellation, China’s BeiDou navigation network, and India’s NavIC expansion reflect efforts to secure autonomous communications capability.

Commercial capabilities are expanding alongside state systems. Companies such as AST SpaceMobile (ASTS) are deploying space-based cellular broadband networks designed to extend global connectivity. Satellogic (SATL) and Planet Labs (PL) operate Earth observation constellations that provide persistent surveillance and geospatial intelligence used across defense, logistics, and resource sectors.

Satellite networks are now embedded in both economic and military systems. Sovereignty increasingly depends on maintaining reliable access to these networks.

The industrialisation of orbit and structural asymmetry

The expansion of satellite networks is driving the industrialisation of this domain. Launch costs have declined significantly due to reusable rocket technology, enabling sustained deployment of satellite systems. However, this environment remains capital-intensive and technically constrained. Satellite manufacturing, launch capacity, regulatory approval, and deployment require specialised labour, long development timelines, and substantial capital investment.

Companies such as Rocket Lab (RKLB) are building dedicated launch and satellite manufacturing capabilities that form the physical backbone of these networks. These systems enable the continued expansion of communications, surveillance, and navigation capabilities.

Demand is accelerating rapidly. The global space economy reached approximately $447 billion in 2025 and is projected to approach $1 trillion within two decades, driven increasingly by defense, communications, and network expansion.

Supply expansion, however, remains constrained by physics, capital, and institutional friction.

This creates a structural asymmetry familiar from terrestrial commodity markets. Systems critical to national security and economic continuity cannot be expanded instantly. Development cycles span years. Capacity constraints persist even as demand rises.

Such asymmetries historically produce sustained investment cycles.

Satellite networks are transitioning from discretionary investment to essential national capability.

Securing resources beyond Earth

Space also represents the next extension of industrial and resource systems beyond Earth’s surface.

Lunar access and early-stage resource missions are laying the groundwork for sustained off-Earth industrial capability. Companies such as Intuitive Machines (LUNR) are developing lunar transport and support systems, enabling long-term expansion of economic activity beyond terrestrial boundaries.

While large-scale extraction remains distant, these efforts follow the same structural logic that drove terrestrial resource development: securing access to critical inputs and extending industrial capacity where necessary.

Expansion follows geopolitical necessity.

As terrestrial systems become more tightly constrained and interdependent, extending these capabilities beyond Earth becomes part of ensuring long-term continuity and resilience.

Conclusion: sovereignty across domains

Global power is increasingly determined by control over the systems that enable economic and military activity.

Energy networks, commodity supply chains, and industrial capacity form the terrestrial foundation. Satellite networks extend that foundation beyond Earth’s surface, supporting communications, navigation, surveillance, and economic coordination.

Space is now part of the core architecture of modern states.

Sovereignty operates across multiple domains—including orbit.

Control over these systems, whether terrestrial or beyond Earth, determines resilience in an increasingly competitive global system