Luna's (Earth's moon's) apparent dark spots are giant "dust puddles." They are areas with large collections of dry sediment. Such things are best avoided, since they can be very deep, and therefor deadly.
Dark plains
He thought they were seas. He called them maria (Latin for sea). Today scientists still call the dark, flat parts maria. Marias were formed when magma flowed through the surface of the moon. The magma cooled and became flat and dark.
When Galileo looked through his telescope at the moon, he saw dark, flat parts of the moon's surface which he called maria.
A "Maria", which is translated into "sea".
The dark areas that form the 'man in the moon' are large flat plains called maria and the brighter parts of the moon are the lunar highlands and the mountain ranges.
Dark maira of seas
The dark areas that form the 'man in the moon' are large flat plains called maria and the brighter parts of the moon are the lunar highlands and the mountain ranges.
craters
maria,seas
A "Maria", which is translated into "sea".
Maria
A "Maria", which is translated into "sea".