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A look at NASA's Voyager 2 spacecraft. A brief overview of the earlier Jupiter flyby is presented before the film moves onto the amazing discoveries awaiting at Saturn. The closest approach to Saturn occurred on August 26, 1981. While passing behind Saturn (as viewed from Earth), Voyager 2 probed Saturn's upper atmosphere with its radio link to gather information on atmospheric temperature and density profiles. Voyager 2 found that at the uppermost pressure levels (seven kilopascals of pressure), Saturn's temperature was 70 kelvins (−203 °C), while at the deepest levels measured (120 kilopascals) the temperature increased to 143 K (−130 °C). The north pole was found to be 10 kelvins cooler, although this may be seasonal (see also Saturn Oppositions). This film has been made available courtesy the US Department of Defence, NASAimages.org and the US National Archives. WDTVLIVE42 - Transport, technology, and general interest movies from the past - newsreels, documentaries & publicity films from my archives.

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