• Question: how big is the universe?

    Asked by Lillian to Hugh, Ed, Dave on 12 Mar 2015.
    • Photo: Dave Bond

      Dave Bond answered on 12 Mar 2015:

      Hi Lillian

      The observable universe. Astronomers have measured the age of the universe to be approximately 13.8 billion years old. Because of the connection between distance and the speed of light, this means they can look at a region of space that lies 13.8 billion light-years away.

      But what is beyond that it cannot be observed so we do not know.

    • Photo: Ed Rial

      Ed Rial answered on 12 Mar 2015:

      Think of the biggest thing you can imagine.

      It’s bigger than that.

      No, BIGGER than that!

      Seriously mind-bendingly big.

      I could give you a number like Dave has but it takes a special mind to understand just how big that really is.

      I can’t get my head around it, if you can, good luck to you!

    • Photo: Hugh Harvey

      Hugh Harvey answered on 13 Mar 2015:

      Super massive is all I know!

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