Are there any papers describing the possibility of life on Ganymede? I understand it is believed to have a liquid water ocean. But few seem as excited about Ganymede as they are about Europa. Is this becuase of the location of the ocean? If there are few or no prospects for lilfe on Ganymede why is the JUICE mission focusing on Ganymede? I thought Europa was what everyone is exicted about , now I read the Laplace is cancelled and ESA are looking to go ahead to Ganymede and prety much forget Europa.