The dark stuff on the moon is just darkness. It's just because the sun is not lighting that part up.Or is that what you're talking about?
Edit : I think the question refers to the "maria" or "seas".
These are nothing to do with water as was once thought. They are the remains of ancient volcanic activity. They are lava flows.
Maria, also known as lunar seas, are the dark relatively flat regions of the moon's surface that were formed when interior lava filled large basins.
The lunar maria (singular: mare) are large, dark, basaltic plains on Earth's Moon, formed by ancient volcanic eruptions.no that won't fit in my crossword _ _ _ _ amaria
The dark spots on the moon are called lunar maria, which are large plains formed by ancient volcanic activity. The lighter areas are called highlands, which are rugged and densely cratered regions of the moon's surface.
The dark-colored, relatively flat regions of the moon's surface that were formed when interior lava filled large basins are called lunar maria. These areas appear darker than the surrounding highlands due to their lower reflectivity and lack of craters. The lunar maria are thought to have formed from ancient volcanic activity on the moon.
The dark colored areas of the moon's surface are referred to as "maria", the Italian and Latin word for "seas". Long before the arid nature of the moon's surface was known, the early observers of the moon interpreted these areas as oceans on the moon, and referred to them accordingly.And as for the light areas, they have always been (correctly) interpreted as mountain ranges, and named accordingly.
Maria, also known as lunar seas, are the dark relatively flat regions of the moon's surface that were formed when interior lava filled large basins.
The dry flat regions of lava on the moon are called maria. These are large dark plains formed by ancient volcanic eruptions filling in low-lying areas on the moon's surface.
The lunar maria (singular: mare) are large, dark, basaltic plains on Earth's Moon, formed by ancient volcanic eruptions.no that won't fit in my crossword _ _ _ _ amaria
Flat regions of dry lava on the surface of the moon are called maria. They are large dark basins formed by ancient volcanic activity and are visible from Earth as dark areas on the lunar surface.
A maria
The dark-colored, relatively flat regions of the Moon's surface are called lunar maria. These maria were formed when basins on the Moon were filled with basaltic lava following impact events in the past.
craters
The dark spots on the moon are called lunar maria, which are large plains formed by ancient volcanic activity. The lighter areas are called highlands, which are rugged and densely cratered regions of the moon's surface.
Dark regions on the surface of the moon are generally basalt flows. Basalt is a dark rock. The flows have been caused by rock melting due to heat generated by meteor impacts.
craters
The dark-colored, relatively flat regions of the moon's surface that were formed when interior lava filled large basins are called lunar maria. These areas appear darker than the surrounding highlands due to their lower reflectivity and lack of craters. The lunar maria are thought to have formed from ancient volcanic activity on the moon.
The large flat areas on the moon are called "Maria" (Latin for "seas", because the early astronomers thought that's what they are). They are huge regions of smooth rock. If very dark, they are so by being in shadows. Smaller dark spots are meteor-impact crater floors in the shadows of the crater wall.