What explanations are there for the mass of the universe?
Question asked by: knowitall
It is believed that only 4% or so of the mass of the universe could be accounted for by ordinary matter.
Therefore it has been suggested that the rest of the mass of the universe is made of dark matter and dark energy.
However, there are other alternatives: see the answer to the 'what are the alternatives to dark matter and dark energy' question in this physics category.
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