Question

What is the universe made of?
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Answer 1

Answer:

The Universe is thought to consist of three types of substance: normal matter, 'dark matter' and 'dark energy'. Normal matter consists of the atoms that make up stars, planets, human beings and every other visible object in the Universe.

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Answer 2

The Universe is thought to consist of three types of substance: normal matter, 'dark matter' and 'dark energy'.