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Katalyst details refuelling system for NEXUS-1 servicer

By SpaceEnergy 26 August 2026 1 min read

(SpaceEnergy) US in-space servicing company Katalyst Space Technologies has detailed a fuel- and interface-agnostic modular refuelling capability for its NEXUS-1 spacecraft.

Material published for the Small Satellite Conference says NEXUS-1 will combine energy-dense propulsion with modular refuelling hardware to support sustained manoeuvring from low Earth orbit through geostationary and beyond-geostationary regimes.

The ESPA-Grande-class servicer is designed to inspect, refuel, upgrade, reposition, extend the life of and deorbit spacecraft, including satellites that were not originally prepared for servicing.

Katalyst’s conference material specifically identifies a fuel- and interface-agnostic architecture, expanding on previously disclosed plans for NEXUS-1 to provide refuelling and life-extension services.

Katalyst previously announced that NEXUS-1 will launch aboard Ariane 6 to geostationary transfer orbit in the second half of 2027. Its first servicing operations are planned for US Government customers before commercial missions.

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