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A Dark Matter Energy Content

  1. Apr 25, 2016 #1
    What is meant by the statement by Harvard scientist Lisa Randall that dark matter carries five times the energy of ordinary matter? Does E=mc2 not apply to dark matter? Does the statement refer to ordinary energy or to dark energy?
     
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  3. Apr 25, 2016 #2

    Chalnoth

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    There's about five times as much mass in our universe in dark matter as there is in normal matter.
     
  4. Apr 28, 2016 #3
    Ok thanks. She should have said something more like "Dark matter accounts for five sixths of the total massenergy content of the universe."
     
  5. Apr 28, 2016 #4

    Chalnoth

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    No, that's not an accurate statement, as there's also dark energy. Her statement was accurate as-is.
     
  6. Apr 28, 2016 #5
    I thank you for your original answer, which makes perfect sense.
     
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