Stars

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Across
  1. 5. makes 90% of all stars
  2. 7. crucial for creating and distributing heavy elements
  3. 8. can last up to billions of years
  4. 9. most luminous and massive stars
  5. 10. eventually freezes solid
Down
  1. 1. made of hydrogen and helium gas
  2. 2. has lots of gravity
  3. 3. earth sized stellar core
  4. 4. giant cloud of dust and gas
  5. 6. incredibly dense remnants of massive stars