Space

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Across
  1. 3. the planet we live on
  2. 5. these are made up of solar systems
  3. 6. no longer an official planet
  4. 7. this takes 28 days to orbit earth
Down
  1. 1. a vacuum made up of galaxies
  2. 2. it takes 365 days and a 1/4 for earth to orbit the sun. this is known as a ____
  3. 4. an empty space with nothing in it