Space

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Across
  1. 2. is completely silent how loud is space?
  2. 5. billion years old How old is space?
  3. 6. mixed together how are stars made?
  4. 7. what color is space?
  5. 8. What’s one mysterious thing floating around space?
Down
  1. 1. what is In space?
  2. 3. what color is space?
  3. 4. what planet is closest to the earth?