Dark Matter Crossword

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Across
  1. 2. What kind of affect does Dark matter have on regular matter?
  2. 4. Who found Dark Matter while studying the Coma Galaxy Cluster
  3. 7. German Name for Dark Matter
Down
  1. 1. what does else does dark matter need to exist
  2. 2. What cluster was he studying?
  3. 3. Dark matter does not contain ____
  4. 5. My favorite drink
  5. 6. He discovered Dark Matter