Space

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Across
  1. 2. A _______ dwarf is the left over core of a red giant star.
  2. 4. The element that is formed by fusion of hydrogen
  3. 6. A large collection of stars.
  4. 8. The first stage of a star's life cycle.
  5. 10. The type of nuclear reaction that occurs in stars
  6. 11. Athlete's cups smashed in defunct vehicle (cryptic)
  7. 13. The element that fuels most stars.
  8. 15. A large satellite of a star.
  9. 16. Tesla and one relative travelling west in circular route, (cryptic)
  10. 17. The nearest main sequence star
Down
  1. 1. A large mass of gas in space.
  2. 3. The process that forms all elements heavier than iron.
  3. 5. An object orbiting another body.
  4. 7. A space station is an ________ satellite.
  5. 9. Breaking up over thin zone, point of no return? (cryptic)
  6. 12. The force that pulls material together.
  7. 14. ______ star: The leftover core of a red supergiant.