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The space adventure > Pioneer II

PIONEER MISSIONS


Credit : NASA
Above the path of Pioneer 10.
Credit : NASA


For the first time, an automatic probe would cross the main asteroid belt between Mars and Jupiter. It was feared that the high population asteroids and dust damaging the probe: it did not happen. Since then, many probes have passed through this area safely. 

Above at right, an image of Jupiter and Galilean satellite (black dot) sent by Pioneer.