Question

approximately how old is the moon thought to be ?

Answer 1

The moon is thought to be approximately 4.5 billion years old. It was  previously believed to be about one hundred million years older than this, but recent research regarding the moons formation has changed the estimated to 4.5 billion years.

Answer 2

Answer: approximately 4.5 billion years old

Explanation:

The moon is as old as earth because it was formed when another earth like planet crashed into our planet which formed the earth, then the collision made a mess of dust and substance which formed into the moon.