BFR, SLS, KRK and Long March 9 and probably in that order
The US has two options for getting to Mars within the next decade and a half with the ambitious plans from SpaceX and the more risk adverse plans of NASA. Both Russia and China also have some plans for Mars and have design work underway to build large rockets to support missions to Mars and to the Moon.
Mars and Antarctica have a lot of similarities when it comes to the difficulties that both places have for human settlement. This article looks at how we occupied Antarctica and what we might learn from that when it comes to sending humans to Mars.
The International Space Station is due for retirement from 2024 when no one has yet committed any funds for its continued use. This articles reviews what options might then be available after 2024 to replace the current functions.