space

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Across
  1. 2. big spherical things, we live on one
  2. 3. smaller planet like objects that orbit a planet
  3. 4. the biggest planet in the solar system
  4. 5. the center of the solar system
  5. 8. a enormous collection of stars
Down
  1. 1. named after the roman god of war
  2. 2. a moon of mars, named after the god of phobias
  3. 3. shares the name of a poisonous substance
  4. 6. all the galaxies; everything
  5. 7. big glowing balls of energy