If we are going to places like Mars, why not Earth? In addition to unveiling his ambitious plans to send humans to Mars by 2022, Elon Musk also revealed at the International Astronautical Congress in the South Australia that SpaceX is building a "BFRBig F**ing Rocket" that will carry people between Earths major cities in under one hour, starting in 2024. Musk said a journey from New York to Shanghai can be done in about 30 minutes. He also said that the cost per seat "should be about the same as full fare economy in an aircraft." The "BFR" would contain 40 cabins capable of transporting 100 people at a time.