SpaceX reflies a Super Heavy booster for the first time

On 27 May 2025, Starship's ninth flight test became the first to launch with a flight-proven Super Heavy booster. The booster — which had flown on an earlier mission and been caught by the launch tower — returned to action carrying 29 of its 33 Raptor engines that had already been to the edge of space and back.

Reusing the most powerful rocket stage ever built is far harder than reusing a Falcon 9, because of Super Heavy's sheer size, its 33-engine cluster, and the violent forces of a tower catch. Demonstrating that the booster can fly, be caught, be inspected and fly again is the single most important step toward Starship's core promise: a fully and rapidly reusable super-heavy launch system.

It also moved Starship from a series of dramatic one-off test flights toward an operational reuse cadence. If Super Heavy reuse becomes as routine as Falcon 9 booster reuse, the marginal cost of lifting 100-plus tonnes to orbit collapses — the precondition for large-scale Starlink V3 deployment, lunar Artemis missions and, ultimately, Mars.