Introducing Starpath:
Manufacturing Propellant in Space at Mega Scale
Circumventing the Rocket Equation

The difficulty of getting from A to B in space is governed by the rocket equation. In the case of deep space travel to the Moon and Mars, designing missions without major compromise – in the form of discarding rockets or spacecraft – is impossible. These compromises drive costs up and fundamentally limit our ability to commercialize deep space.

Starpath makes missions without compromise possible by producing propellant at scale on the surface of the Moon and Mars, circumventing the constraints of the rocket equation.

When vehicles like SpaceX’s Starship HLS and Blue Origin’s Blue Moon have access to propellant on the surface of the Moon, they will be capable of operating fully reusable missions. Imagine a world where all rockets and spacecraft can refuel in space and return to Earth for reuse. We would have constant and affordable transport between Earth, the Moon, Mars, and beyond.

At Starpath, we're making this a reality by building robotics factories capable of producing propellants (Liquid Oxygen, Liquid Methane, Liquid Hydrogen) on the surface of the Moon and Mars at Mega Scale - enough to refill even the largest rockets and spacecraft.

The Profound Economics of Spacecraft Refilling

Refilling a spacecraft in space is unlike refilling a plane, ship, car, or train because the alternative to refilling is to discard the vehicle at its destination. The value of a tank of fuel to a spacecraft on the surface of the Moon would in effect be the cost to produce said spacecraft. In fact, given the immense cost of producing a Lunar Lander (ie. Starship, Blue Moon), the sale price – even steeply discounted – of just one tank of propellant on the Moon exceeds the cost to develop, launch, and operate a Mega Scale propellant factory that is capable of producing multiple tanks of propellant per year, for many years.

What it Means for Humanity

In the philosophical sense, vastly reducing the cost of landed mass on the Moon and Mars is about more than saving money - it's about enabling humanity to go further than it otherwise would or could. As a baseline, Starpath will create large value for customers, improve the efficiency of missions to the Moon and Mars, and capture some of that value. In the long-run, the implications of Starpath will be that we play a part in building humanity's first cities on the Moon and Mars.

From Dreams to Reality on Repeat: Join Us

Our team is scrappy and built to move fast. We repeatedly iterate using empirical data and first principles. We don’t sit in long meetings, making guesses about how hardware should be designed, we make hypotheses, test them, and repeat.

We started Starpath because we saw an opportunity to build the exciting future our species has been dreaming of for millenia. This future becomes a reality when we deliver on our promise to drive multi-order-of-magnitude improvements in the performance and scalability of industrial space infrastructure - a class of technology for which there exists no state of the art. If these constraints excite you - and if Starpath’s mission to make life multiplanetary captivates your emotions - please reach out to us at: