Post by sherlew99 on Jun 18, 2017 9:28:21 GMT -6 Yahoo FinanceJupiter is the oldest planet in the Solar SystemMariella MoonEngadgetJune 17, 2017Jupiter's ancient name really is well-deserved: according to a new study, the king of the planets isn't just the largest in the Solar System, it's also the oldest.Click here for the rest of the article.