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On-Orbit Servicing and Refueling

Extending spacecraft life and enabling new missions.

mysimulator teamUpdated June 2026≈ 3 min read▶ Open the simulation

Capabilities

RPO, capture, docking

Inspection, repair, upgrade

Propellant transfer and depots

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Example

Example: GEO Life-Extension Mission

Plan RPO and docking with client.

Verify control and safety envelopes.

Extend service life and operations.

Frequently asked questions

Standards?

Docking interfaces and refueling ports.

Autonomy?

Guidance, navigation, control.

Safety?

Keep-out zones and fault tolerance.

Debris risks?

Mitigation via design and ops.

Fluids?

Microgravity handling techniques.

Economics?

Cost vs value of life extension.

Legal?

Consent, liability, and norms.

Refueling?

Depot architectures and propellants.

Dual-use?

Transparency and assurance.

Outlook?

Ecosystem of servicing providers.

Try it live

Everything above runs in your browser — open Spiral Galaxy and change the parameters while it is running. Nothing is installed, nothing is uploaded, the whole model lives in one tab.

▶ Open Spiral Galaxy simulation