The Universe

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Across
  1. 4. the north star
  2. 6. the galaxy type shaped ovalish; mainly bright stars clustered together
  3. 9. the measurement used for space
  4. 10. the galaxy type most know; the milky way is this type of galaxy
  5. 11. the theory that the universe began 12 – 15 billion years ago with a huge explosion that caused expansion everywhere at the same time
  6. 13. everything and anything to exist
  7. 14. what occurs when a supergiant's core collapses; can further evolve into a neutron star or black hole
  8. 15. the galaxy type for everything else than the other two
Down
  1. 1. occurs when a supernova core collapses to a point of no volume
  2. 2. a type of massive and bright star that is not part of the main sequence
  3. 3. the theory that that the universe expands and contracts repeatedly over time
  4. 5. a large collection of gas, stars, and dust
  5. 7. a pattern of stars
  6. 8. our galaxy that we live in
  7. 12. may occur when a supernova core collapses, creating this star of high density