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What is Dark Matter and Dark Energy?

Key Facts In This Video

  1. The known universe consists of about 70% dark energy, 25% dark matter, and 5% visible matter. 00:08

  2. Dark energy seems to be intrinsic to empty space, which has more energy than everything else in the universe combined. 03:45

  3. One theory of dark energy postulates that it comes from virtual particles in empty space that form and disappear constantly. 04:47