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The prevailing theory at present is some form of early impact with the partly-cooled Earth. This may have been a co-orbiting object that fused with the Earth after the collision, but that blasted loose the material which later formed the Moon.

(see the related question)
the moon isn't as old as the Earth and was formed approximately 30-50 million years after the Solar System based on what is called 'the giant impact theory'.

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10y ago
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4mo ago

The moon is estimated to have formed around 4.5 billion years ago, shortly after the formation of the Earth. The most widely accepted theory is that the moon was created from debris left over from a giant impact between Earth and another Mars-sized body called Theia.

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Q: When was the moon formed?
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Related questions

Where was maria on the moon formed?

The maria's on the moon were formed by meteors slamming into it.


What shape is the moon formed?

The moon is spherical.


How were the depressions on the moon formed?

The depressions on the moon are impact craters formed by collisions with asteroids and comets.


What was the solar system when the moon formed?

When the Moon was formed, the Solar System WAS already a solar system.


How is soil formed in moon?

i already said YOUR MOON!~


What are the problems With the other theories of how the moon formed?

Scientists n there theories are uncertain still of how the moon formed about'


Are shadows formed by sun?

They are Formed by xagons that come from moon.


How was the crater Plato formed?

it was formed by a astroed that hit the moon


How do moon craters form on the moon?

They are formed by asteroids and meteorites crashing into the surface of the moon


What was created first sun or moon?

The sun formed first. The moon was not formed until around after the formation of proto-Earth.


Was the moon formed after a planet-sized object collided with the sun.?

No. The moon formed after a planet-sized object collided with Earth.


How were the dark spots on the moon formed?

i think when the moon cooled down.