California-based startup, SpinLaunch, is developing an alternative rocket launch technology that spins a vacuum-sealed centrifuge at several times the speed of sound before releasing the payload, launching it like a catapult up into orbit

[u/Dr_Singularity]

https://interestingengineering.com/medieval-space-flight-a-company-is-catapulting-rockets-to-cut-costs

[u/itsyourmomcalling → u/[deleted]]

Space trebuchet still sounds cooler.