Everything Sci-Fi

123456789
Across
  1. 2. Instant travel from one place to another
  2. 4. Point of infinite density in black hole
  3. 5. Time-travel contradiction
  4. 7. Faster-than-light travel realm
  5. 9. Microscopic robotic machine
Down
  1. 1. Rocky body drifting in space
  2. 3. Futuristic society gone wrong
  3. 6. Extraterrestrial being
  4. 8. Genetically identical copy