Dark Matter

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Across
  1. 3. How much of the universes total energy density does dark matter make up
  2. 7. How much of the universe is made up of Dark Matter.
  3. 8. What shape is it
  4. 9. Is Dark Matter Visible.
  5. 10. it does what to the appearance of galaxys
Down
  1. 1. What is the size of dark matters particles
  2. 2. Does Dark matter emit light
  3. 4. When was dark matter first proposed
  4. 5. How many times more of dark matter is there than normal matter
  5. 6. what binds galaxies together