space

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Across
  1. 3. a small burning rock
  2. 6. find
  3. 7. arrive on the ground
  4. 8. become warm or hot
  5. 9. space rock that lands on Earth
Down
  1. 1. a trained person who travels in a spacecraft
  2. 2. produce
  3. 3. move very quickly
  4. 4. not visible
  5. 5. a device used to observe distant objects