• Question: how many other galaxies are there?

    Asked by anon-191711 to Kathryn, Graeme, Anne, Agnes, Adam on 14 Nov 2018.
    • Photo: Anne Green

      Anne Green answered on 14 Nov 2018:

      We think there are trillions of other galaxies in the Universe.

    • Photo: Adam McGuinness

      Adam McGuinness answered on 14 Nov 2018:

      Far too many to count!

    • Photo: Agnes Wojtusiak

      Agnes Wojtusiak answered on 14 Nov 2018:

      Telescopes have seen so many galaxies that we can’t possibly keep track of them all!
      .
      But there is a way even YOU can help! It’s a really cool way for anyone – old or young, scientist or student or anyone – to help with it: Galaxy Zoo – https://www.zooniverse.org/projects/zookeeper/galaxy-zoo/
      .
      Zooniverse has loads of other projects too, from space to biology https://www.zooniverse.org/projects – anything you might be interested in, and you’re actually helping science!

    • Photo: Kathryn

      Kathryn answered on 14 Nov 2018:

      There are more galaxies in the universe than grains of sand on Earth.

    • Photo: Graeme Poole

      Graeme Poole answered on 15 Nov 2018:

      Latest estimates are about 100 billion. But it could be even more.

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