Logan's Cosmic Cipher

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Across
  1. 1. Nano-___ (Sputnik, for example)
  2. 4. Vehicle launched into space
  3. 8. Apollo's successor mission series
  4. 9. U.S. space agency
  5. 10. Force of attraction
  6. 11. Flying object with a tail
  7. 13. TARDIS pilot's puzzling surname
  8. 14. solar system center
Down
  1. 2. WWII-era "Fighting I" now docked on the Hudson
  2. 3. Send into space
  3. 5. planet's path
  4. 6. This star sign is known for being reliable, practical, and ambitious
  5. 7. First private company to launch NASA astronauts to orbit
  6. 12. Earth's Magnetic ___ (or Tyra Banks)