On This Day In Chemistry

December 4th

Pioneer 10 gets closest to Jupiter

In 1973 Pioneer 10 flew closest to Jupiter. It was the first probe to image Jupiter and fly beyond the orbit of the furthest planet in the solar system. Part of its mission was to investigate the ratio of hydrogen to helium in the Jovian atmosphere. It also found evidence of helium in regions of space.

Image credit © NASA
 

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