A California startup wants to put satellites into a circular chamber and whip them around to more than 5,000 miles per hour before letting them burst out, allowing a rocket to fire up its engine only after it’s escaped the smothering tug of Earth’s gravity.

(SOURCE) https://www.cnn.com/2022/06/14/tech/spinlaunch-ceo-yaney-interview-scn-spc-intl/index.html