<P> This is a list of maria ( singular mare ) on the Moon . Lunar Maria are the large , dark , regions of the moon . They do not actually contain any water , however they are believed to have been formed from molten rock from the moon 's mantle coming out onto the surface of the moon . It also includes the one oceanus and the features known by the names lacus , palus and sinus . The modern system of lunar nomenclature was introduced in 1651 by Riccioli . Riccioli 's map of the moon was drawn by Francesco Maria Grimaldi , who has a crater named after him . </P>
<P> This is a list of maria ( singular mare ) on the Moon . Lunar Maria are the large , dark , regions of the moon . They do not actually contain any water , however they are believed to have been formed from molten rock from the moon 's mantle coming out onto the surface of the moon . It also includes the one oceanus and the features known by the names lacus , palus and sinus . The modern system of lunar nomenclature was introduced in 1651 by Riccioli . Riccioli 's map of the moon was drawn by Francesco Maria Grimaldi , who has a crater named after him . </P>
what is the name for the dark spots on the moon
what is the name for the dark spots on the moon
maria ( singular mare )
maria ( singular mare )