Science 9 - Space Exploration: The Universe

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Across
  1. 2. type of galaxy that is oval shaped
  2. 5. the science of the origin and development of the universe
  3. 8. light coming from distant stars
  4. 10. stage in which star shines for millions or billions of years
  5. 12. powerful explosion that may produce a neutron star
  6. 13. earliest stage of a star's life
  7. 14. theory most widely accepted theory of the origin of the universe
  8. 16. giant cloud of gas and dust
  9. 18. theory that the universe will one day stop expanding
  10. 19. the Milky Way is this type of galaxy
  11. 20. space telescope was named after this American astronomer
Down
  1. 1. phase in which a star no longer emits light
  2. 3. distance light travels in one year
  3. 4. type of galaxy that has no particular shape
  4. 6. shines with white hot light
  5. 7. 88 are recognized by the IUA
  6. 9. star expands and cools and glows red
  7. 11. brightest thing in the universe
  8. 15. is a system of billions of stars together with gas and dust
  9. 17. all of space and time and their contents
  10. 21. hole darkest thing in the universe