James G. Hill é director do observatório e planetário Rainwater no Mississipi. Uma resposta curta ao encontro do meu pensamento sobre o assunto:

"Like you, I learned that planets formed slowly by accretion and then
differentiation. Current theories have to coincide with more and better
data and at the moment are undergoing adjustments. So far as I know, this
week, Jupiter has a rocky core, but this understanding could change at any
moment. Isn't science great! Never dull".