Every satellite that has been sent into orbit in the history of spaceflight has required a rocket. The necessity for rockets, however, is changing, with SpinLaunch marking the first successful test launch of its kinetic launch technology. The launch system is zero-emissions and does not need a rocket.
To launch payloads into orbit, it employs a gigantic accelerator the size of the Statue of Liberty that is powered by an electric motor. SpinLaunch claims that their invention may cut fuel usage by a factor of four while costing ten times less than standard rocket launches.