Space Technology
Planet Jupiter Consists of Liquid Hydrogen
Washington—Planet Jupiter is a gigantic sphere of liquid hydrogen without any detectable solid surface except for possibly a small, perhaps molten, rocky core thousands of miles below its turbulent cloud tops. Findings from the National Aeronautics and Space Administration’s Pioneer 10 indicate Jupiter is far too hot to have solidified, with temperatures at its core of about 54,000F, six times the temperature on the surface of the sun.