EntityQ197872· pop 27· linked from 84 articlesMare HumorumSign in to savelunar mareConnectionsimpact craterEntityEgyptCountryVeniceEntityCaspian SeaEntitygeographic coordinate systemEntitydiameterEntitydigital object identifierEntitybasaltEntityQ180686EntityApollo 17ConceptJohannes HeveliusEntitybibcodeEntityPierre GassendiEntityeponymEntityUnited States Geological SurveyEntitylunar mareEntityMare TranquillitonEntityGiovanni Battista RiccioliEntityOceanus ProcellarumEntityfour temperamentsEntityCategoriesLQ19 quadrangleMaria on the Moon