everything comes to an end

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Across
  1. 2. Aphrodite's tree
  2. 5. Brahe's first name
  3. 7. flowers and fat
  4. 9. Adam's favorite word
  5. 13. he explains a lot of stuff
  6. 14. can be replenished
  7. 15. he postulated the nuclear structure of the atom
  8. 18. Marie Curie's maiden name
  9. 19. little robot
  10. 21. a Frenchman in space
  11. 22. a chopper on Mars
  12. 24. glowing poison
Down
  1. 1. extraction process
  2. 3. beginning of everything
  3. 4. german astronomer
  4. 6. ghg
  5. 8. apple eater
  6. 10. part of the alternator
  7. 11. a place for Musk
  8. 12. the shape of orbits
  9. 16. a component of number 5
  10. 17. famous agency
  11. 20. he brought us the bulbs
  12. 23. periodic rise and fall