The oldest Moon rocks found so far are 4.5 billion years old. This is only about 200 million years after formation of the solar system so the Moon probably formed not long before.
Oldest Moon Rocks
About the Author
Robert Walker
Writer of articles on Mars and Space issues - Software Developer of Tune Smithy, Bounce Metronome etc.Studied at Wolfson College, Oxford
Lives in Isle of Mull
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