Artist's conception of a human mission on the surface of Mars. 1989 painting by Les Bossinas of NASA's Lewis Research Center.A Space Launch System design in the 2010s. This rocket is envisioned as the launch vehicle for some of the latest NASA speculative long-term plans for Mars concepts, although there are some bold private venture plans that may also provide mass-to-orbit for any mission until a space-faring colony could provide a launch from another body or space station.
This list of crewed Mars mission plans is a listing of concept studies for a crewed mission to Mars during the 20th and 21st centuries. It is limited to studies done with engineering and scientific knowledge about the capabilities of then current technology, typically for high-budget space agencies like NASA. Mission profiles include crewed flybys, crewed landers, or other types of Mars system encounter strategies.
