Space Crossword

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Across
  1. 3. a creature in space
  2. 4. also known as the the red planet
  3. 6. what astronauts travel in
  4. 7. 7th planet from the sun
Down
  1. 1. Earths sister planet
  2. 2. Mons the tallest volcano on mars
  3. 5. also known as the gas giant
  4. 8. hottest star