Rocket Lab: The Only One Building the Right RocketNarrow moat

Rocket Lab is much the smaller company and, on the measure that matters, the more interesting competitor. Its Electron rocket carries about 300 kilograms to low Earth orbit — useful, and irrelevant to SpaceX. Neutron, expected to fly from 2026, is designed to be reusable and to carry roughly 13,000 kilograms¹. That is the class Falcon 9 owns, and Neutron is the only credible attempt to contest it.

The significance is what a reusable medium-lift vehicle would do to pricing. SpaceX's cost advantage rests on being the only company that recovers and reflies boosters at scale; the moment a second company does the same, launch prices become negotiable in a way they have not been for a decade. Not because Rocket Lab would take much volume — it would not, initially — but because customers would finally have an alternative to quote against.

The obstacles are the ones every launch company meets: reuse is far harder than reaching orbit, and the learning curve SpaceX climbed took years and many destroyed boosters. Rocket Lab has the advantage of watching someone else solve it first, and the disadvantage of a fraction of the capital.

Watch Neutron's first successful booster recovery and, more importantly, its first reflight. Reaching orbit is a milestone. Reflying the same hardware is the event that would change the industry's economics, and nobody except SpaceX has yet done it with a medium-lift vehicle.