The Universe on a Grand Scale

  • Will Gater
Part of the Astronomers' Universe book series (ASTRONOM)


How far can you see on a clear night with your naked eye? If you are walking on top of a high hill looking toward the horizon you might see the lights of a distant town or city twinkling perhaps 10, even 15, kilometers away or a little more. What if you look up into the vast blackness stretching above you? From a dark sky northern hemisphere site in the autumn months, away from the light pollution of urban areas, you might be able to make out the fuzzy blob that is the Andromeda Galaxy. This enormous gathering of several billion stars is about 2.2 million light years from Earth, one of the farthest objects you can see with your naked eye. But what if you were to use a telescope? Well, things of course get a little different. You then are able to peer many millions of light years into space. You can then marvel at the light from galaxies, not a few millions of light years from Earth but many tens of millions of light years distant!


Dark Matter Dark Energy Galaxy Cluster Wilkinson Microwave Anisotropy Probe Rubber Sheet 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



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Copyright information

© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  • Will Gater
    • 1
  1. 1.DevonUK

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