Very early on in Earth's history as the planetary bodies were forming from the dust ring round the new Sun, approximately 4.5 billion years ago.
It is believed that it was formed from the "splash" material thrown out when the young Earth had a collision with another planet, a Mars-sized body called Theia.
Craters on the moon were formed when meteorites crashed into the moons surface at unimaginable speeds. so true :P
The lunar maria (singular: mare) are believed to have been formed by ancient volcanic eruptions. They were given the name maria by early astronomers, who thought they were seas. Maria is the Latin word for seas.
Triton.
The moon was formed be....1.formed @ the same time as Earth2.broke off from the Earth3. an asteroid that got cought in Earth's atmosphere and later on and some of Earth's mantle on top of it.
They are the "maria". They were formed from volcanic lava flows.
These dark areas are called maria. They are thought to be formed by volcanic eruptions in the moon's history.
Craters on the moon were formed when meteorites crashed into the moons surface at unimaginable speeds. so true :P
By asteroids impacting the surface.
The moon was thought to have formed 4.527 billion years ago, when a large planetoid the size of mars collided with the earth, as the solar system was still in its infancy. The remains of this impact went into orbit around the Earth, forming into the moon we have today.
Our Moon's maria are currently believed to have been formed by ancient volcanic eruptions.
the moon was formed with a heavy piece of Green Cheese !!! that is the right awnser , so dont think this is wiered - Elvis Presley
The lunar maria (singular: mare) are believed to have been formed by ancient volcanic eruptions. They were given the name maria by early astronomers, who thought they were seas. Maria is the Latin word for seas.
Triton.
The moon was formed be....1.formed @ the same time as Earth2.broke off from the Earth3. an asteroid that got cought in Earth's atmosphere and later on and some of Earth's mantle on top of it.
The maria's on the moon were formed by meteors slamming into it.
They are the "maria". They were formed from volcanic lava flows.
Jupiters moon is thought to contain microscopic ice crystals but this theory has not yet been proven