• Question: When was the Big Bang?

    Asked by 238putk28 to James, Jake, Pete, Senga, Simonne on 7 Nov 2017. This question was also asked by chuck.
    • Photo: James Cole

      James Cole answered on 7 Nov 2017:

      I’m not sure about this as I am an Archaeologist (interested in the human past) not an Astrophysicist but I think it was around 13.7 billion years ago

    • Photo: Jake Langham

      Jake Langham answered on 14 Nov 2017:

      Just to add: the way astrophysicists work this out is they look at the other galaxies and work out how fast they are travelling. It turns out that the further away a galaxy is, the faster it is travelling away from us, no matter which direction you look. This is because the universe itself is expanding. By doing some clever maths they can work out where everything came from and how long it took to get to where we are today.

    • Photo: Senga Robertson

      Senga Robertson answered on 14 Nov 2017:

      Scientists think it was about 13.8 billion years ago…which is too long ago for me to even understand. it’s such a huge number: 13,800,000,000.

      To put it in to perspective if you could count, one number per second, without breaks for sleeping, eating, or anything else… It would take 437 years, 217 days, 5 hours, 19 minutes, 40 seconds to count to 13.8 billion. Woah! That really makes me realise how long ago that was.

      Senga 🙂

    • Photo: Senga Robertson

      Senga Robertson answered on 15 Nov 2017:

      Scientists think the big bang was around 13.8 billion years ago, that’s13,800,000,000 years ago. That number is too big for my brain to really appreciate.

      Here is cool video I found that describes how scientists think the big bang happened

      🙂

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