火星1969A号（Mars 2M No.521、Mars M-69 No.521、Mars 1969A）是苏联在1969年发射的火星探测计画的探测船，于3月27日协调世界时10:40:45由一枚搭载D组级的质子K型运载火箭发射。搭载相机、质谱仪...等，发射4百馀秒后爆炸[1]。
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