Fact of the Week: October 14, 2013

Matter that you might traditional think of, protons, neutrons, and electrons, only makes up about 5% of the total universe. 25% of the universe is made up of Dark Matter. The other 70% is made up of Dark Energy.
Read more in the cite below
Cite: http://science.nationalgeographic.com/science/space/dark-matter/

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