Photograph of Earth from space showing clouds, oceans, and continents

In-space refueling.

We refuel spacecraft on-orbit today using Earth-launched propellant. Extend mission life, unlock reusability, and stop replacing spacecraft when they run out of propellant.

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THE OPPORTUNITY

Fuel is the bottleneck of spaceflight.

Spacecraft in orbit have a fuel-limited lifespan. Refueling on-orbit extends mission life, maintains critical orbits, and turns single-use assets into reusable infrastructure.

Who we serve

Satellite OperatorsCivil Space AgenciesDefenseCommercial Space StationsOrbital Transfer VehiclesLunar Landers

SERVICE OFFERINGS

Two methods of refueling.

Two spacecraft docked for on-orbit propellant transfer above Earth

On-Orbit Refueling

Direct propellant transfer to your spacecraft, extending mission life, restoring maneuverability, and enabling reusability across LEO, GEO, and cislunar space. Delivered where and when you need it.

Propellant depot servicing multiple satellites in Earth orbit

Propellant Depot Staging

Pre-positioned depots hold propellant on-orbit for scheduled and contingency refueling, ready to service missions across cislunar space. 

HOW IT WORKS

A repeatable process, mission after mission.

01

Manifest

We work with your team to define target orbit, propellant type, quantity, and rendezvous window.

02

Prepare

Astral launches the tanker or stages propellant to a depot on a standard commercial launch vehicle.

03

Rendezvous & Dock

Autonomous rendezvous, proximity operations, and docking with the customer spacecraft or depot interface.

04

Transfer

Propellant is transferred, verified, and the customer spacecraft resumes operations with a full tank.

TIMELINE

2027
First spacecraft deployment.

We are actively engaging pilot customers and partners ahead of first flight. If refueling changes what your mission can do, let's talk now.

Partner with us on a pilot mission.

Tell us about your spacecraft, orbit, and timeline. We'll come back with a mission plan tailored to your operations.

Get in Touch