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Melody Meza
Chemistry
10 May, 21:29
What is the composition of the universe?
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Dale Hebert
10 May, 21:34
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dark matter, and ordinary matter. Other contents are electromagnetic radiation.
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Sparks
10 May, 21:41
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Composition. The universe is composed almost completely of dark energy, dark matter, and ordinary matter. Other contents are electromagnetic radiation (estimated to constitute from 0.005% to close to 0.01% of the total mass-energy of the universe) and antimatter.
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