Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

I Studying Dark Energy

  1. Dec 27, 2016 #1
    Hey guys,

    I was wandering that, if dark matter and dark energy makes up 68 and 27 percentage of the the universe, then is it justifiable to study these in terms of models of the known parts of the universe which comprises of less than 5 percentage of the universe, also it is clearly evident that nature prefers dark matter and dark energies to the rest, so should there not be a completely different model to describe it altogether?
    I admit that this is a highly non-technical question, and may even sound absurd to some of you, but I found it to be interesting to think about, and would love to hear your personal views about it.

    Thanks in advance.
  2. jcsd
  3. Dec 27, 2016 #2


    User Avatar
    Science Advisor

    We don't study these in terms of models of the normal matter. Dark matter and dark energy have different models. These models are informed by our models of normal matter, but they are distinct.
  4. Dec 29, 2016 #3
    The models now are based largely on energy, not matter. General relativity only cares about energy, it doesn't matter to the equations whether it's matter or dark matter or even a black hole. QM also deals with energy, particles are just waves in energy fields. So neither are really a model of matter.

    It also makes sense because we used those models to discover them in the first place. The only reason we know the dark matter is there at all is because our observations don't match predictions.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted