• Question: how old is our solar system?

    Asked by § Kxtie McGexwn § to Gaia, Jim, Scott on 17 Mar 2016.
    • Photo: Jim Barrett

      Jim Barrett answered on 17 Mar 2016:

      The solar system is about 4.5 billion years old 🙂

    • Photo: Scott Lawrie

      Scott Lawrie answered on 17 Mar 2016:

      Planet formation is quite interesting actually. The Sun formed about 5 billion years ago and all the planets were made from all the gas, dust and rubble left over. It ‘only’ took about 10 million years to make all the planets: a tiny speck of time in the grand scheme of things! So planet formation was all done and dusted by 4.5billion years ago. Puts it into perspective just how insignificant humans are: having only been around for a few tens of thousands of years! 😎

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