NASA's plans for the first manned mission to Mars and what such a mission will look like, as well as what the astronauts are expected to encounter while on the Martian surface.NASA's plans for the first manned mission to Mars and what such a mission will look like, as well as what the astronauts are expected to encounter while on the Martian surface.NASA's plans for the first manned mission to Mars and what such a mission will look like, as well as what the astronauts are expected to encounter while on the Martian surface.