New Atlas [newatlas.com]:
SpinLaunch has released on-board footage from its eighth suborbital flight test, giving us a unique opportunity to imagine what it'd be like to be hurled skyward out of a centrifugal accelerator at more than a thousand miles per hour.
Rockets are big, dangerously explosive, and environmentally hazardous – and there are other ways to get stuff up into orbit. Green Launch, for example, is planning to get satellites into orbit within just 10 minutes, by replacing the first-stage rocket booster with a hydrogen-powered hypersonic impulse launch cannon [newatlas.com] that can fire a launch vehicle upwards at more than 17 times the speed of sound.
The approach is meant to lower costs for getting materiel into orbit.