| Human mission to Mars | |||||||||
| Author | Year of proposal | Year of planned flight | Number of astronauts | Number of Mars ships | Weight on LEO [ton] | Number of launchers | |||
| Werner fon Braun | 1956 | 12 | 2 | 3600 | 40 | ||||
| Bono | 1960 | 1971 | 8 | 1 | 3700 | ||||
| Koroljov | 1962 | 1 | 1600 | 20 | |||||
| North American Aviation | 1962 | 1977 | 5 | 3 | 1200 | ||||
| Sohn | 1965 | 1982 | 6 | 1 | 1000 | ||||
| Parkinson | 1981 | 1994 | 5 | 3 | |||||
| Zubrin | 1991 | 1996 | 4 | 2 | 220 | 2 | |||
| NASA DRM 1.0 | 1993 | 2007 | 6 | 4 | 850 | ||||
| NASA DRM 3.0 | 1998 | 4 | 3 | 500 | |||||
| ESA | 2004 | 2033 | 6 | 1 | 1500 | 28 | |||
| NASA DRM 5.0 | 2007 | 2029 | 3 | 900 | 8 | ||||
| SpaceWorks | 2007 | 2033 | 3 | 3 | 500 | 5 | |||
| Ajgl | 2007 | 2050 | 2 | 4 | 1000 | 8 | |||
| NASA DRA 5.0 | 2009 | 2035 | 6 | 3 | 900 | 8 | |||