Well, Asimov on Fondation and Earth, put a ocean like planet on Alfa. https://en.wikipedia.org/wiki/Foundation_and_Earth https://en.wikipedia.org/wiki/Foundatio

Well, Asimov on Fondation and Earth, put a ocean like planet on Alfa. https://en.wikipedia.org/wiki/Foundation_and_Earth https://en.wikipedia.org/wiki/Foundation_and_Earth