CROSSWORD TIME

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Across
  1. 3. What small body of matter burns up when entering Earth’s atmosphere?
  2. 4. What has a bright tail when it moves through space?
  3. 6. What is a living being from another planet called?
  4. 7. What object orbits the Earth?
  5. 8. What object moves around a planet?
  6. 11. What force pulls objects toward each other?
  7. 13. What vehicle or missile is powered by jet propulsion?
  8. 15. Who travels into space?
  9. 18. What is a bright ball of gas in space?
  10. 20. What do we call a planet that doesn’t orbit any star?
Down
  1. 1. What includes the Sun and all objects that orbit it?
  2. 2. What tool is used to see distant objects in space?
  3. 5. What do Earth and Mars have in common?
  4. 9. What is a small rocky body that orbits the Sun?
  5. 10. What is the distance that light travels in one year?
  6. 12. Who studies stars and planets?
  7. 14. What is the path a planet takes around a star?
  8. 16. What vehicle is designed for travel in space?
  9. 17. What do we call a group of billions of stars?
  10. 19. What celestial object is too small to become a star?