The Universe

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Across
  1. 2. WHAT CAN BE SMALLER THAN AN ATOM
  2. 3. invisible everything eaters
  3. 5. there is nothing outside of it
  4. 6. the big blue-green marble
  5. 11. star that ate too much
  6. 12. the source of universal expansion
  7. 15. our beautiful galaxy
  8. 16. why did it dye itself red???
  9. 17. the brightest ball of gas
  10. 18. biggest explosion in the universe
Down
  1. 1. cosmic glue
  2. 4. keeps the universe together
  3. 7. goodness gracious great balls of gas
  4. 8. just your everyday matter
  5. 9. the end state of the sun
  6. 10. the biggest greenhouse in the universe
  7. 13. way. too. small.
  8. 14. pulse,pulse,pulse. All that flashing...