Space CrossWord

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Across
  1. 2. A ultra-dense, collapsed core of a massive star
  2. 4. Cloud of gas and dust
  3. 5. Their lifetime is short and they cool down quickly
  4. 9. Cold dark and invisable
  5. 10. a star that is fusing hydrogen to helium in its core
Down
  1. 1. A star that suddenly increases greatly in brightness
  2. 3. The remnant of an average sized star
  3. 6. Earliest stage of a stars life
  4. 7. A region in space with so much gravity that nothing can escape
  5. 8. This star can reach sizes over 100 times