Here is the quote from a recent article on data being received from JUNO, the surveyor in orbit around Jupiter, from March 8, 2018:
“Juno’s data showed that as you go deeper under the surface, Jupiter’s gas becomes ionized and eventually turns into a hot, dense metallic liquid.”
And it says:
“…and that its deep interior is comprised of a fluid hydrogen and helium mixture that rotates as if it were a solid body.”
Now from Paper 57 from the Urantia Book on the composition of our largest planet, foretold in 1955:
“Jupiter and Saturn, being derived from the very center of the enormous column of superheated solar gases, contained so much highly heated sun material that they shone with a brilliant light and emitted enormous volumes of heat; they were in reality secondary suns for a short period after their formation as separate space bodies. These two largest of the solar system planets have remained largely gaseous to this day, not even yet having cooled off to the point of complete condensation or solidification.”
One more example of how the Urantia authors got it right.