The universe andmore

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Across
  1. 2. a large collection of stars and gas and dust
  2. 6. body that orbits the sun
  3. 7. is a gigantic explosion
  4. 9. large cloud of gas and dust in space
  5. 10. hot dense core of matter that remains small
Down
  1. 1. the collection of large and small bodies of our orbit
  2. 3. is the distance that light travels through space
  3. 4. magnitude measures a stars brightness
  4. 5. is a body that is composed of gas and emits light
  5. 8. used to describe space and all of the energy
  6. 11. magnitude how bright a star would be