Suppliers > Stellar Exploration
Key highlights
Building on the heritage of the U.S. arm, Stellar Exploration Inc., in power and propulsion system development, Stellar Exploration EU delivers solutions for a wide range of missions, from micro- to small-satellites. We offer state of the art power systems, propulsion technologies, and on-demand custom RF development.
The company is strongly delivery-oriented, prioritizing flight hardware over paper studies. This approach is supported by a proven track record, with over 40 flight models delivered to customers within past years. Our customer-centric methodology enables support everything from ESA institutional programs, following ECSS-compliant development processes, to fast-tracked commercial missions with delivery lead times below three months. This adaptability is enabled by robust internal processes and a highly trained engineering and MAIT team.
Stellar Exploration EU offers:
Power Systems
- Smart or conventional battery systems, available off-the-shelf or as customer-specific designs
- PCDU units tailored to customer-defined requirements
- EPS system development driven by mission-specific needs and constraints
Propulsion Systems
- Warm gas propulsion solutions for microsatellites, supporting both full 6-DOF maneuvering and simpler systems for orbital maintenance
- Monopropellant propulsion systems for missions requiring higher agility, with flight heritage supporting RPO operations and large orbital maneuvers across missions ranging from LEO to cislunar space, including the CAPSTONE mission https://stellar-exploration.eu/propulsion
- Propulsion system component development (pumps, thrusters, plumbing and tanks), compatible with both conventional and green propellants
RF Systems
- Custom antenna development, ranging from monopole to helical antenna designs, tailored to mission and platform requirements
Mission Engineering
- Earth remote sensing applications via GNSS Radio Occultation mission
- Mission design support in field of propulsion system or power systems
Customers
Private Customers:
- ICEYE
- Reflex Aerospace
- APEX Aerospace
ESA Projects:
IOSHEX EPS development - Stellar Exploration has been selected by SAB Aerospace to develop the for the innovative IOSHEX mission, focused on modular robotic spacecraft for in-orbit servicing. Our role includes designing, analyzing, and verifying the EPS, ensuring reliable power generation, storage, distribution, and conditioning for the spacecraft.
PERLA - battery based on advanced silicon-anode lithium-ion cells to deliver 400–500 Wh/kg, far surpassing conventional batteries. It provides high power, reduced mass, and space-grade reliability for long-duration missions and human exploration.
STREAM - project develops an advanced electric gear pump for in-space propulsion, aiming to replace traditional pressure-fed systems in OTVs, kick stages, and motorized dispensers.
Enceladus L4B - Stellar Exploration is evaluating primary battery cells under cryogenic conditions to simulate the extreme environment on Enceladus. The project aims to demonstrate reliable power performance at ultra-low temperatures, a critical enabling technology for future landers and subsurface exploration missions.
EARS - Supported by the ESA InCubed program, project aiming at enhancing current radio occultation measurements through the development of new instruments and optimized mission designs
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Last updated: 2026-01-09