Outer Space

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Across
  1. 3. The Earth does this around the sun
  2. 6. The reason we have day and night
  3. 7. We live on this planet
  4. 8. A rocket does this into space
Down
  1. 1. This is a group of stars.
  2. 2. The sun is a _____.
  3. 4. A person who travels to space is an ______.
  4. 5. Scientist use this to look at stars.