CNAT RETURNS!

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Across
  1. 2. Headed by Oppenheimer: ________ Project
  2. 4. Wrote his autobiography while imprisoned in Genoa
  3. 5. Roentgen was worried when he discovered these rays
  4. 6. Was excommunicated for the 95 Theses
  5. 8. The Derg were in this East African country
  6. 9. JJ Thomson discovered this particle
  7. 11. Man who names a type of radiation emitted by black holes
  8. 12. Michelangelo sculpted Moses with these
  9. 13. Othniel Charles Marsh fought a series of wars over these in the 1800s
  10. 14. Edison: ______ of Menlo Park
  11. 16. He followed birds to the Siwa Oasis
  12. 17. The North Star
  13. 19. Measured by the Mercalli & Richter scales
Down
  1. 1. Competed with Leibniz to invent calculus
  2. 3. POP Artist nearly assassinated by Valerie Solanas
  3. 7. Dirty War happened here
  4. 10. Country where Pol Pot was dictator
  5. 15. Earth layer directly above the Moho discontinuity
  6. 18. Element originally called "dephlogisticated air" when discovered