KOMPAS.com – Surface moon consists of land that looks like white and black. Do you know, what do you call the vast lowlands on the moon? The vast plain on the moon is called ocean of the moon or monthly high.
In ancient times, scientists observed the moon and found dark areas. The dark area is named “mare”, which is a Latin word meaning sea.
The naming is actually a mistake because initially scientists thought the dark area was the ocean.
Thus, the area is known as the moon sea. However, it turns out that on the moon there is no liquid water at all. Which means, the dark area is not filled with water.
Also read: How is the Moon’s Surface?
Ocean of the moon is a broad lowland on the moon. Reported NASA Solar System Explorationthe moon’s oceans cover about 17 percent of the moon’s surface area.
Meanwhile, most of the moon’s ocean faces the earth. So, we can see the black lowlands from the earth without the help of any tools.
Meteor impact result
Reported from K12 LibreTextsthe lunar ocean formed about three to four billion years ago when the moon was constantly bombarded by meteors.
The impact of many meteors produces large basins and creates lowlands on the moon.
Also read: The Moon’s Rotation and Revolution With respect to the Earth
Filled by lava
At that time, the moon has active volcanic activity. Reported from European Space Agencymolten magma that rises to the surface of the moon and then fills the basin or lowlands.
This filling continued until the lunar volcanic activity ceased about 1.2 billion years ago.
The lava that fills the lunar lowlands then cools and solidifies, also turning dark in color.
So, unlike the oceans on earth which are filled with water. The oceans on the moon are filled with magma that has now hardened, making it look like a black plain.
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