Ceres, largest object in asteroid belt, shows signs of habitability near Ertunet Crater WIONLargest asteroid in our solar system used to be an ocean planet Earth.comAliphatic hydrocarbons on Ceres' surface found to have short lifetimes Phys.orgCeres is Former Ocean World, Planetary Scientists Say Sci.NewsShort-lived organics on Ceres hint at a past ocean — and conditions ripe for life Astronomy Magazine