1971 - Mars probe program: Mars 2 is launched by the Soviet Union.

1971年的今天，火星太空探测船计划：苏联发射了火星2号。

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So far the score in 1999 is Mars 2 Earth 0.

BBC: Mars 2 - Earth 0

The rover, after traveling for more than eight months, safely landed on the surface of Mars before 2 a.m.

CNN: Mars rover mission's 'Mohawk Guy' inspires Obama

Mars was bombarded with approximately 2.6 million of these pulses.

BBC: By BBC News Online Science Editor Dr David Whitehouse