SpinLaunch’s Suborbital Accelerator

Why use unsustainable rocket propellants for small satellite launches when you could just catapult them into space?

It might sound like a mad proposition, but a California-based startup, SpinLaunch, is actually 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….

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