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You are here: Home / Space / What Is the Universe and What Is the Universe Made Of?

What Is the Universe and What Is the Universe Made Of?

May 2, 2020 by Karen Hill

The universe is a dynamic, evolving organism.

It is commonly defined as the totality of everything that exists.

It had a beginning, probably a sudden, massive expansion of matter, and it may have an end.

We don’t really know.

Meanwhile, it grows by means of further expansion; galaxies move farther and farther away from each other.

The universe is filled with activity and motion.

Stars explode into existence and expand and contract throughout their lives. Planets revolve around stars. Galaxies spin and tumble. Comets and asteroids streak through solar systems. Elements, atoms, molecules, and particles constantly interact, creating change.

Electromagnetic waves are everywhere.

Yet, for all we can see out there, it may be that most of the universe is made of dark matter, which we have not been able to find.

Related Facts

  • How is the Universe expanding and Who discovered that the expansion of the universe is accelerating?
  • How do astronomers know how far away stars and galaxies are from earth?
  • Who Discovered other Galaxies in the Universe and that the Sun is part of the Milky Way Galaxy?
  • Who discovered that Planets Exist Around Other Stars in the Universe and When?
  • Who Discovered Dark Matter and Where does Dark Matter come from?
  • How do Astronomers know that the universe is expanding by studying light waves?

Filed Under: Space

About Karen Hill

Karen Hill is a freelance writer, editor, and columnist. Born in New York, her work has appeared in the Examiner, Yahoo News, Buzzfeed, among others.

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