| http://www.w3.org/ns/prov#value | - For instance, at the altitude where the air pressure is at one atmosphere, the gravitational force is a benign 0.9 G on Saturn and Uranus, and 1.1 G on Neptune. (This is unfortunately not true of Jupiter, where the gravitational force in the cloud tops is around 2.4 G.)Right now, nobody is planning any balloon missions to the gas giants.
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