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The Mars 2 was an unmanned space probe of the Mars program, a series of unmanned Mars landers and orbiters launched by the Soviet Union in the early 1970s. The Mars 2 and Mars 3 missions consisted of identical spacecraft, each with an orbiter and an attached lander. The orbiter is identical to the Venera 9 bus or orbiter. They were launched by a Proton-K heavy launch vehicle with a Blok D upper stage. The lander of Mars 2 became the first man-made object to reach the surface of Mars. On May 19, 1971, the proton-k-2 blasted from Baikonur Cosmodrome. After the first stage separated the second stage started. The third stage engine blasted Mars 2 into parking orbit then the Blok-d set Mars 2 to Mars 2 then the probe was deployed. ==Overview== * Launch Date/Time: * * Mars 2: 19 May 1971 at 16:22:44 UTC * Launch mass (including fuel): * * Combined: * * Orbiter: * * Lander: * On-orbit dry mass: * Dimensions: tall, across ( across with solar panels deployed) 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Mars 2」の詳細全文を読む スポンサード リンク
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