Well, there is Nightmare Moon. She was banished there for 1000 years by Princess Celestia. I'm pretty sure there were no other ponies on there, so she is probably the largest mare on there. Too bad she escaped.
The word mare is roughly translated from the French to mean ocean or sea. There are large open basaltic areas on the moon, and they are "vast" in a way similar to the sea. And it was natural for those naming the features to apply this term to some of them. There are a number of features like this on the moon, and you can learn more by using the links below. The first link is to the lunar mare where the term is defined, and the second one is to a list of lunar mare.
They are large, dark, basaltic plains on Earth's moon formed by ancient volcanic eruptions
The mare formed by heavy metorite impacts that produced large impact basins, breaking through the moon's crust on the near side where it is thinner and filling it with lava.
almost entirely on Earth side, where the crust was thinner.
Mare (MAH-ray) is volcanic rock deposits of basalt on the moon
a lunar mare is something you eat
The stretches of dark sand fooled early observers of the moon, who called them the mares, or seas. Some of the most prominent mares are Mare Tranquilitaties and Mare Imbrium.
Mares
The moon has 4 seas. The sea of rain, the sea of tranqulity,sea of crises and the sea of serenity Surely the moon has 12 seas or MARES Showers / Rain Cognitus Moisture Serenity Tranquility Fertility Nectar Vapours Islands Clouds Crisis Cold There is also an Ocean of storms
A lot of craters can be seen on the moon with a telescope.
In theory, yes.
They are called Mares.
The stretches of dark sand fooled early observers of the moon, who called them the mares, or seas. Some of the most prominent mares are Mare Tranquilitaties and Mare Imbrium.
Seas (or mares) - because they were first thought of as bodies of water.
Mares
Please separate the mares from the stallion.
Mares are female horses.
Anagrams of "mares" are:ReamsMaserSmear
Mares: Are fully grown filly's or adult female horses.Mare: Latin word for "sea".Mare: Used when describing the flat plains on the moon - as in Lunar Mare. A basaltic plain on the Moon
Money makes the mares go.Horses and mares are very faithful.
Xurxo Mares's birth name is Xurxo Garca-Mares Gimnez.
I think you're asking about the moon's "mares," which are broad, relatively smooth plains on the lunar surface. The word "mare" is Latin for sea, which is what early astronomers mistook the plains for.
A Mares' offspring is called a "Foal".