BFR is a design by SpaceX for a privately funded next-generation reusable launch vehicle and spacecraft announced by Elon Musk in September 2017. Musk has said the first spacecraft prototype will begin testing in early 2019. The overall space vehicle architecture includes the launch vehicles and spacecraft that are intended to replace all of SpaceX's existing space hardware by the early 2020s, ground infrastructure for rapid launch and relaunch, and zero-gravity propellant transfer technology to be deployed in low Earth orbit (LEO). The large payload to Earth orbit of up to 150,000 kg (330,000...