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Seeing light

  1. Sep 23, 2008 #1
    if we can see light from distant stars from millions of years ago why can't we see the back side of light? once the light reaches our eyes, where does it go and why can't we ever see it again?
  2. jcsd
  3. Sep 23, 2008 #2
    As far as where it goes. Some that hits Earth is absorbed, some bounces off and goes in another direction, and some just keeps truckin'....
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