Details of NASA's 5-stage plan to bring people to Mars
In March last year, US law allowed NASA to bring people to Mars in 2033. So they built detailed plans, including five stages of bringing astronauts to Mars orbit.NASA creates hundred-ton rockets that collect specimens from planets
NASA plans to build a kind of heavy missile based on the space launch system (SLS), which can fly far above planets near the Earth like the Moon or Mars, to come and bring