I saw it!
A tiny, shiny speck under the microscope, and the thrill of seeing a form of matter which, it can be argued, has never existed anywhere in the universe. Ever.
I'm being pedantic, but should be "human knowledge", not "universe". It is absurdly unlikely that the conditions needed for this substance to exist never occurred in the ~1,000,000,000,000,000,000,000 star systems in the known universe. "conditions needed" includes intelligent life creating these substances.
To get solid metallic hydrogen, you'd need both high pressure and low temperatures; in the celestial bodies that can provide the former, the latter seems unlikely.
Your attempt at humour has been rightly sanctioned, but you weren't all that far from the mark. Jove is another name for the roman god Jupiter, and as such a Jovian planet is one that resembles Jupiter - ie. large gas giants, where metallic hydrogen is certainly thought to exist in nature.