Dark Matter

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Across
  1. 1. passes through our solar system every 10 years
  2. 5. held together by dark matter
  3. 8. holds the universe together
  4. 9. Weakly Interacting Massive Particles
  5. 11. published a paper on missing matter
Down
  1. 2. gets bent by gravity
  2. 3. slow moving particles
  3. 4. made of more than one kind of particle
  4. 6. ____ spectrum doesn't interact with dark matter
  5. 7. causes our universe to expand
  6. 10. Hypothetical subatomic particle