# Are the Sun, Earth, and Moon around the same age?

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Kyx Share
Dec 8, 2015

Not really, no

#### Explanation:

The sun formed 5 billion years ago when a planetary nebula collapsed due to the force of gravity. This became massive enough to undergo nuclear fusion and create a star.

The Earth formed 4.5 billion years ago from the accretion disk that surrounded the sun.

The moon formed around 30 - 40 million years after Earth due to a collision between Earth and a planet around the size of Mars.

All of these values are approximate, but the order from oldest to youngest is:

The sun $\rightarrow$ The Earth $\rightarrow$ The Moon

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