In-space chemical propulsion · In development

Chemical propulsion for active, long-lived spacecraft.

Aeterna Sidera is developing propulsion systems for spacecraft servicing, orbital logistics and other demanding in-space operations.

Our focus is repeated maneuvering over extended operating lives, with precision and reliability as core development priorities.

Intended offering

Spacecraft propulsion systems.

The program spans thrusters, propellant storage and delivery, and propulsion controls. We intend to offer configurations with multiple thrusters for different spacecraft applications.

Current work is in design and analysis, ahead of prototype fabrication and testing.

For spacecraft developers

Discuss your application.

We welcome conversations with spacecraft developers and potential development partners. Send a brief, non-sensitive introduction to your application.

Please do not send classified, export-controlled, proprietary, or procurement-sensitive information.