Elon Musk says his SpaceX company is developing a new booster system that will launch a cargo mission to Mars by 2022, followed by manned missions in 2024. Moreover, the new system, which he calls the BFR, will be capable of re-entry and reuse, making hypersonic passenger service between cities on earth practical and affordable.
This is a companion discussion topic for the original entry at https://www.avweb.com/recent-updates/business-military/musk-manned-mars-mission-by-2024