In this article written by Mateo Meo, he talks about meoSphere, SES’s next-generation MEO constellation. Rather than just building more satellites, meoSphere represents a new approach to building and operating satellite infrastructure. Mateo explains how meoSphere functions as a flexible multi-orbit backbone that can dynamically reroute bandwidth without launching new satellites, and he breaks down what makes meoSphere unique.
At SATShow Week 2026 in Washington, D.C., SES CEO Adel Al-Saleh took the stage to announce what may be one of the most significant satellite infrastructure programs of the decade: meoSphere, a next-generation Medium Earth Orbit constellation targeted for operation by 2030.
The announcement was not just about more satellites. It was about a fundamentally different approach to building and operating a constellation, one designed from the ground up for a world where connectivity is no longer a service but a foundational utility.
Here is what meoSphere is, why it matters, and what it signals about where the satellite industry is heading.
A New Architecture, Not Just a New Constellation
The satellite industry has seen no shortage of constellation announcements in recent years. What sets meoSphere apart is not the number of satellites but the architectural decisions behind them.
SES is developing its own software-defined payloads in Luxembourg and pairing them with a new class of high-power satellite platforms built by K2 Space, a NewSpace technology company based in California. The initial phase includes 28 satellites, each capable of delivering up to 20 kilowatts of peak power, with a payload capacity of up to 500 kilograms in MEO.
The satellites will operate at approximately 8,000 kilometers above Earth, in four inclined orbital planes. A series of pathfinder missions is planned, the first one just launched on March 30, 2026, with additional pathfinder launches to follow in subsequent years.
Flexibility by Design
If there is one word that defines meoSphere, it is adaptability.
Each satellite’s software-defined communications payload is designed to adapt to fluctuations in demand on the ground. This maps well with MEO’s slightly higher orbit compared with LEO constellations, allowing meoSphere to dynamically focus bandwidth where it is needed.
With meoSphere, the network can adapt to shifting demand patterns, redirect capacity to crisis zones, scale bandwidth for seasonal traffic spikes, or dedicate resources to new customers, all without launching a new satellite.
For industries that operate in unpredictable environments, from maritime shipping and aviation to energy exploration and defense operations, this kind of flexibility is not a luxury. It is a requirement.
Multi-Orbit, Multi-Mission, Sovereign Networking
One of the most compelling aspects of meoSphere is its role as a multi-orbit backbone.
MEO offers unique advantages such as lower latency compared to GEO, greater coverage flexibility, higher security, and more stable operations compared to LEO. As such, it is well suited to be integrated into a multi-orbit solution that complements LEO and GEO constellations. SES is developing a portfolio of multi-orbit terminals that are high-performance, compact, and affordable, enabling customers to take full advantage of multi-orbit solutions featuring meoSphere. Additionally, the baseline network system for the communications payload will be based on the 5G-NTN standard, which will enhance the multi-orbit experience by enabling meoSphere to integrate smoothly with both terrestrial and non-terrestrial 5G networks.
The constellation is designed to use optical inter-satellite links (OISLs), capable of up to 100 Gbps, to connect meoSphere satellites with each other and to support data relay from third-party missions in LEO to the ground. Rather than operating as an isolated network, meoSphere serves as a strategic backbone for the New Space economy, relaying data from earth observation and space situational awareness satellites, space stations, and orbital data centers back to Earth.
At the same time, the constellation is built as a multi-mission platform. Beyond broadband connectivity, meoSphere can host customer payloads for missions that take advantage of the unique characteristics of the MEO orbit, including missile warning and tracking, space situational awareness, sovereign communications, and alternative positioning, navigation, and timing (PNT).
The meoSphere system offers sovereign network customers multiple layers of options, including hosting dedicated communications payloads, leveraging the integrated transparent payload architecture that allows them to operate their own waveforms and modems, including in military Ka-band spectrum, preserving the independence and security that classified missions require, as well as access to virtually dedicated capacity slices within the shared network.
Why MEO?
In a market increasingly dominated by LEO mega-constellations and traditional GEO satellites, it is worth asking: why MEO?
The answer lies in the orbital geometry. MEO offers a combination of characteristics that neither LEO nor GEO can match on their own.
Compared to GEO, MEO delivers significantly lower latency, roughly 150 milliseconds round-trip versus 600 milliseconds or more for geostationary orbits. For applications like real-time communications, video conferencing, cloud access, and autonomous systems, that difference matters.
Compared to LEO, MEO requires far fewer satellites to achieve global coverage. Each satellite at 8,000 kilometers covers a much larger area of Earth’s surface than a satellite at 500 kilometers. This means a smaller MEO constellation can deliver comparable geographic reach to a large LEO constellation, with lower operational complexity and a more resilient architecture, where a smaller number of widely spaced satellites is inherently harder to disrupt than dense low-orbit formations.
MEO also offers more efficient ground infrastructure. Fewer satellites mean fewer ground stations are needed for handoff and routing, and those stations can be located in more central and secure locations, reducing both capital expenditure and operational complexity while increasing data safety.
SES has operated in MEO since its original O3b constellation launched in 2013, making it the most experienced operator in this orbital layer.
The K2 Space Factor
The choice of K2 Space as the satellite platform partner is notable. K2 is a relatively new entrant in the satellite manufacturing industry, offering agile design and production, and compelling economics.
The co-development model, with SES building payloads in Luxembourg and K2 building platforms in California, gives SES tighter control over its supply chain while benefiting from the speed and cost efficiency of a nimble manufacturing approach. It is a model that reflects a broader industry trend: established operators verticalizing to take more ownership over their supply chain and partnering with agile newcomers to compress and improve predictability of timelines and costs while improving performance.
What This Means for the Industry
meoSphere arrives at a moment when the satellite industry is undergoing a structural transformation.
The post-capacity era, as described in recent Novaspace analysis, means that raw bandwidth is no longer the differentiator. What matters now is how intelligently capacity can be delivered: how flexibly it can be allocated, how seamlessly it integrates with terrestrial networks, and how reliably it performs in the most demanding environments.
meoSphere is designed precisely for this reality. It is a software-defined, multi-orbit, multi-mission platform built for a world where connectivity underpins everything from global commerce to national security, and where technology and economic activity are increasingly expanding into space.
For telecom operators, it means a new high-performance layer that integrates with 5G NTN standards. For aviation and maritime customers, it means fiber-like connectivity across oceans and remote corridors. For governments, it means sovereign, resilient communications in contested environments. And for the emerging space economy, it means an in-orbit backbone that can relay data, host payloads, and enable connectivity for space-based missions.
Looking Ahead
The initial 28-satellite phase of meoSphere is targeted to be operational by 2030, with pathfinder missions beginning this year. Together, these milestones reflect SES’s long‑term commitment to the strategic value of MEO and the continued evolution of its multi‑orbit architecture.
Built on a modern, scalable design, meoSphere brings strong economics, a flexible payload architecture, and alignment with accelerating demand for software‑defined, multi‑orbit connectivity.
The future of satellite connectivity is not about any single orbit. It is about how different orbital layers work together as a unified system. meoSphere is built for that future.
