Black Hole Close Up

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Across
  1. 2. no return
  2. 4. the amount of matter
  3. 7. Waves that vibrate in all directions
  4. 8. people who detect activity in space
  5. 11. an object so massive and dense
  6. 12. Powerful matter that moves fast like the speed of light
  7. 13. a force that attracts objects toward one another
Down
  1. 1. exerts force on moving charged particles
  2. 3. waves
  3. 5. break down
  4. 6. Whirls growing hot that has high speed
  5. 9. particles of light
  6. 10. Hot flowing matter made up of charged particles