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How do black holes radiate if nothing can escape?

  1. Oct 16, 2011 #1
    Hi. So, as title says, how can black holes radiate if nothing can escape from them?
     
  2. jcsd
  3. Oct 16, 2011 #2

    George Jones

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    Radiate what?
     
  4. Oct 16, 2011 #3
    Well, what about Hawking radiation? Black holes have to lose their mass in some way, but how can they emit something?
     
  5. Oct 16, 2011 #4
    From Wikipedia

    Wikipedia has a decent explanation in the first couple paragraphs.
    http://en.wikipedia.org/wiki/Hawking_radiation
     
  6. Oct 16, 2011 #5
    Because the radiation is from outside the event horizon, in short.
     
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