Mare Crisium (the sea of Crises), a “nectarine basin (about 3.9 billion years old) that spans 740 km” (NASA). Giovanni Riccioli named the Mare Crisium, whose 1651 nomenclature system has become standardized and by the 17 century Mare Crisium had acquired the name of “Caspin Sea”. The Mare Crisium can be observed without the
Mare Crisium (the sea of Crises), a “nectarine basin (about 3.9 billion years old) that spans 740 km” (NASA). Giovanni Riccioli named the Mare Crisium, whose 1651 nomenclature system has become standardized and by the 17 century Mare Crisium had acquired the name of “Caspin Sea”. The Mare Crisium can be observed without the