Two Million Galaxies

Discussion in 'Science and Nature' started by MelT, Mar 23, 2014.

  1. This is an old APOD, but still very sobering,
     
    MelT
     
    \t\t\tAstronomy Picture of the Day\tDiscover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.
    \t2007 October 7
    [​IMG]
    \tTwo Million Galaxies
    Credit & Copyright: S. Maddox (Nottingham U.) et al. APM Survey, Astrophys. Dept. Oxford U.Explanation: Our universe is filled with galaxies. Galaxies -- huge conglomerations of stars, gas, dust -- and mysterious dark matter are the basic building blocks of the large-scale universe. Although distant galaxies move away from each other as the universe expands, gravity attracts neighboring galaxies to each other, forming galaxy groups, clusters of galaxies, and even larger expansive filaments. Some of these structures are visible on one of the most comprehensive maps of the sky ever made in galaxies: the APM galaxy survey map completed in the early 1990s. Over 2 million galaxies are depicted above in a region 100 degrees across centered toward our Milky Way Galaxy's south pole. Bright regions indicate more galaxies, while bluer colors denote larger average galaxies. Dark ellipses have been cut away where bright local stars dominate the sky. Many scientific discoveries resulted from analyses of the map data, including that the universe was surprisingly complex on large scales.

     
  2. Looks like synapses
     
  3. Looks likes a tacky t-shirt
     
  4. #4 g0pher, Apr 4, 2014
    Last edited by a moderator: Apr 4, 2014
    We are so small, and that's only 2 million galaxies 
    Edit: Check out the "scale of the universe" animation in this link http://htwins.net/scale2/  pretty cool
     
  5. http://youtu.be/fAij6ztC_tk
     
  6.  
    Just curious of the reason why the image is not symetrical overall in comparison to the top section ?
     
  7.  
     Just an artefact due to the way the image was constructed.
     
    MelT
     
  8. Looks nice.  We are so tiny.
     
  9. Looks like rust.
     
  10. Looks like bublely dab


    Green valleys of Kalamata
     
  11. I have a sweater with that design
     
  12. Reminds me of what the inside of my eyelids look like after partying to much... :bongin:
     
  13. 2 million alone blows my mind. That means 1 billion is WAY beyond that. And they say there are billions of galaxies. The word "billion" just doesn't do it justice
     
  14. #14 forty winks, May 22, 2014
    Last edited by a moderator: May 22, 2014
    looks like poorly made shatter
     
    not quite absolute
     
    we're gonna need a bigger purger
     

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