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About: PrOP-M     Goto   Sponge   NotDistinct   Permalink

An Entity of Type : dbo:SpaceMission, within Data Space : dbpedia.demo.openlinksw.com associated with source document(s)

Type: Thingschema:Eventdul:Eventsocietal eventwikidata:Q1656682wikidata:Q2133344eventspace mission New Facet based on Instances of this Class

PrOP-M (Russian: Прибор оценки проходимости — Марс (ПрОП-М), Passability Estimating Vehicle for Mars or Device Evaluation Terrain—Mars) were two Soviet Mars rovers that were launched on the unsuccessful Mars 2 and Mars 3 missions in 1971. PrOP-M were the first rovers to be launched to Mars, 26 years before the first successful rover mission of NASA's Sojourner in 1997. Because the Mars 2 and Mars 3 missions failed, the existence of the rovers was kept secret for nearly 20 years.