Alpha Impulsion

GRENAT

The first autophage space launcher.

WHAT IS AN AUTOPHAGE SPACE LAUNCHER

Autophage propulsion is an overhaul of the classical space launcher architecture, using fuel as structure. As the rocket ascends, the engine gradually burns the rocket’s body, starting from the bottom and moving upwards, getting shorter during the flight like an upside-down candle. The vehicle consumes itself, until only the engine and the payload remain.

GRENAT :
POWERED BY
AUTOPHAGE
PROPULSION

We leave Earth in 2028

Grenat’s inaugural launch is set for 2028, marking a major milestone in our journey. As development progresses, payload capacity will steadily increase to 1000 kg, with full industrial operations anticipated by the end of the decade.

Cutting manufacturing cost by 80%

We deliver dedicated launches at rideshare prices. By eliminating costly components such as fuel tanks, staging systems, and secondary engines, we slash costs by a factor of five.

Sustainable and Safer

Space debris is one of the biggest challenges for future space missions. Ensuring safe access to orbit is our top priority. Our technology eliminates the need to discard rocket stages mid-flight, significantly reducing the risk of debris.

Height

25 m

Diameter

1 m

Propulsion

HDPE – LOX

Payload

1000kg

A breakthrough in space propulsion

Autophage propulsion revolutionizes rocket design by replacing heavy, costly structures with functional fuel. Our patented engine brings tomorrow’s ambitious space goals within reach.

For small satellites constellations

In space, every kilogram counts. By eliminating unnecessary components, we reduce the rocket’s total mass by up to 40%, leaving more capacity to deliver Earth observation and telecom constellations to Low Earth Orbit. Our service is taylored to meet your affordability and flexibilility needs.

WHAT WE'VE DONE SO FAR

OUR LATEST ACHIEVEMENTS

Space is hard, and we recognize that achieving our goals requires
a step-by-step approach. We’re committed to an iterative
process, engineering each component to ensure reliability
and success.