Astronomy Crossword

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Across
  1. 5. Launched the first rocket into
  2. 8. discovered by astronomer William Hershel
  3. 10. named after astronomer Edmond Halley
  4. 12. Flagship of NASA
  5. 13. astronauts had to repair the main mirror
  6. 14. First United States satelite
  7. 16. founded in 1919
  8. 18. Year the Viking 1 and viking 2 was launched
  9. 19. Year Pluto was discovered
  10. 20. year Nasa was established
  11. 22. ISS construction began
Down
  1. 1. Discovered by Giuseppe Piazzi
  2. 2. names of the automated motor vehicles on mars
  3. 3. First person to orbit earth
  4. 4. used to measure distance to 61 cyngi
  5. 6. Burned up in the atmosphere
  6. 7. Named after Edwin Hubble
  7. 9. started by William Hershel
  8. 10. Published by Henry Norris Rusell
  9. 11. discovered by astronomer Johann Gotfired
  10. 14. first artificial space satellite launched by the russians
  11. 15. First man to step on the moon
  12. 17. Year voyager 1 entered interstellar space.
  13. 18. first space shuttle was launched
  14. 21. Year voyager 1 and 2 was launched