Fed Amazing CrossWord Puzzle

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Across
  1. 3. It was launched on September 5th 1977
  2. 6. It is also known as the ISS
  3. 7. On Sunday I have to go to ____?
  4. 8. On the table of elements the abbreviation is the first one on the table.
  5. 11. We live on this planet
  6. 13. There are gasses and dust in this
  7. 14. The north star
  8. 16. You are ____.
  9. 17. This is what stars make after they go supernova
  10. 18. what makes a desk stay on the floor
  11. 21. Buzz ____
Down
  1. 1. This is the amount of time that the ISS takes to orbit the earth.
  2. 2. The big dipper is a famous ____?
  3. 4. a doughnut-shaped icy region beyond the orbit of Neptune
  4. 5. In Greek mythology she was a princess the daughter of king Cepheus
  5. 8. Edwin Powell ____?
  6. 9. This allows us to communicate from around the world
  7. 10. There is a chocolate names after this Galaxy.
  8. 12. Closest stellar system closest to ours
  9. 15. We ___ around the sun.
  10. 18. The milky way ___.
  11. 19. We live on a _____.
  12. 20. Our sun is a medium size of this