• Question: Approximately how many galaxy s have we discovered.

    Asked by 873spdm39 to Lisa, Mark, Rachel, Sammie, Stephen, Tim on 7 Mar 2018.
    • Photo: Stephen Wilkins

      Stephen Wilkins answered on 7 Mar 2018:

      In total we probably know of several million galaxies, although many of these will appear as blobs in an image. Thanks to new telescopes observing more of the sky to fainter limits we’re likely to know of hundreds of millions in the near future.