Universe

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Across
  1. 2. stage after supernova when the core of the star is contracted to a very small area
  2. 3. point around a black hole in which nothing can escape, even light
  3. 7. Stage in a star's life cycle when the star runs out of fuel. it then shrinks and cools
  4. 8. the distance light travels in one year
  5. 10. stage after a supernova where all the core's mass collapses to a point
Down
  1. 1. Patterns of stars in the night sky
  2. 4. large cloud of dust and gas where a star forms
  3. 5. stage in a star's life cycle when the star expands and cools
  4. 6. violent explosion of a supergiant star
  5. 9. A large group of stars, gas, and dust held together by gravity