China’s commercial space sector has reached a cost milestone as its new rocket debuts for less than the ticket price of the latest SpaceX Falcon 9 reusable launch vehicle.The Kinetica-2 Y1 carrier rocket, also known as the Lijian-2 Y1, took off on its inaugural flight on Monday before delivering three satellites into orbit, including a prototype commercial cargo spacecraft and a satellite to function as a mini-orbiting space lab.The rocket developed by Chinese commercial space firm CAS Space –...