List of artificial objects on Mars

Man-made object	Image	Nationality	Landed	Mass (kg)	Status	Location
Mars 2		USSR	1971	1210	Failure during descent; crashed on surface	45°S313°W [1]
Mars 3		USSR	1971	1210	Transmission failure 14.5 seconds after soft landing	Sirenum Terra, 45°S158°W [2]
Mars 6		USSR	1973	635	Insufficient thrust during landing; crashed on surface	Margaritifer Terra, 23.90°S 19.42°W [3]
Viking 1 lander		United States	1976	657	Operated 2245 sols. Last contact Nov 11, 1982	Chryse Planitia, 22.697°N 48.222°W [4]
Viking 2 lander		United States	1976	657	Operated 1281 sols. Last contact Apr 11, 1980	Utopia Planitia, 48.269°N 225.990°W[5]
Mars Pathfinderlander &Sojournerrover		United States	1997	360	Operated 83 sols. Last contact Sep 27, 1997[6]	Ares Vallis, 19.33°N 33.55°W [7][8]
Mars Climate Orbiter		United States	1999	629	Destroyed by atmospheric stresses & friction.[9]	Unknown
Mars Polar Lander &Deep Space 2		United States	1999	500	Unknown failure during descent; crashed on surface	Ultimi Scopuli, 76°S195°W [10][11]
Spirit rover(MER-A)		United States	2004	185	Operated 2210 sols. Last contact Mar 22, 2010	Gusev crater,14.5718°S 175.4785°E[12][13]
Opportunity rover(MER-B)		United States	2004	185	Still in operation	Meridiani Planum, 1.9462°S 354.4734°E[14][15]
Phoenix Mars Lander		United States	2008	350	Operated 155 sols. Last contact Nov 2, 2008	Vastitas Borealis, unofficially namedGreen Valley,68.15°N 125.9°W [16]
Mars Science Laboratory(Curiosity)		United States	2012	900	Still in operation	Aeolis Palusin Gale Crater, 4°36′0″S137°12′0″E
Total estimated dry mass (kg)				9,303