| align=left | Man-made object | align=center | Nationality | align=center | Landed | align=center | Mass (kg) | align=right | Location |
| Mars 2 | USSR | align=right | 1971 | align=right | 1210 | align=right | 45 S - 302 W |
| Mars 3 | USSR | align=right | 1971 | align=right | 1210 | align=right | 45 S - 158 W |
| Mars 6 | USSR | align=right | 1973 | align=right | 635 | align=right | 29.90 S - 19.42 W |
| Viking 1 lander | United States | align=right | 1976 | align=right | 657 | align=right | 22.480 N - 47.967 W |
| Viking 2 lander | United States | align=right | 1976 | align=right | 657 | align=right | 48.269 N - 225.99 W |
| Mars Pathfinder & Sojourner rover | United States | align=right | 1997 | align=right | 360 | align=right | 19.33 N - 33.55 W |
| Mars Climate Orbiter1 | United States | align=right | 1999 | align=right | 629 | align=right | ? |
| Mars Polar Lander & Deep Space 2 | United States | align=right | 1999 | align=right | 500 | align=right | 76 S - 195 W |
| Beagle 2 | United Kingdom | align=right | 2003 | align=right | 69 | align=right | 10.6 N - 270 W |
| MER-A & Spirit rover | United States | align=right | 2004 | align=right | 1063 | align=right | 14.5718 S - 175.4785 E |
| MER-B & Opportunity rover | United States | align=right | 2004 | align=right | 1063 | align=right | 1.9483 S - 354.4742 E |