R. Root-crossword puzzle

1234567891011121314151617181920212223
Across
  1. 4. we live and love this planet/can't live without it
  2. 6. is a barred spiral galaxy
  3. 8. another word for weight
  4. 11. is the closest star to planet Earth
  5. 12. when planets rotate or spin around each other in space
  6. 13. Mars, Earth, Jupiter, etc
  7. 14. counts time and distance in space
  8. 15. Earth has it and it makes things fall when dropped
  9. 16. an hour and a half
  10. 17. a donut-shaped ring of icy objects
  11. 20. an other word for dark pit in space
  12. 21. a human space travel system
  13. 23. NASA's longest-lived mission
Down
  1. 1. it orbits the earth and collects information
  2. 2. this and oxygen make water
  3. 3. a group of stars that makes a picture
  4. 5. one of newtons laws
  5. 7. helps you get cellphone signals
  6. 9. a space telescope
  7. 10. a cluster o stars
  8. 18. a death or birth of a star
  9. 19. aliens and stars!
  10. 22. looks up at night and see _______