Guide :Elementary School

what is the universe made of ?

What is the universe made of ?
The Universe is made of 74% of dark energy, 22% of dark matter and 4% of atoms.The Universe is the biggest thing you can imagine. It is made up of everything that exists anywhere----solar systems, stars, galaxies, and everything in, on, or in-between. But no one is sure of the actual size of the Universe. Some say it has no end and goes on forever and ever. Astronomers can see out no more than 14 billion light years.  ...

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