Space and Astronomy

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Across
  1. 4. The closest star to Earth
  2. 8. Phenomenon where light is bent by gravity
  3. 9. A small, icy body that orbits the Sun
  4. 10. The point in orbit when a planet is closest to the Sun
  5. 14. The point in orbit when a planet is farthest from the Sun
  6. 16. The study of celestial bodies beyond our solar system
  7. 17. The second planet from the Sun
  8. 19. Star at the center of our solar system
  9. 20. Largest planet in our solar system
Down
  1. 1. Largest moon of Saturn
  2. 2. Red planet in our solar system
  3. 3. Brightest object in the night sky
  4. 5. Cluster of stars in the night sky
  5. 6. The fourth planet from the Sun
  6. 7. Galaxy that contains our solar system
  7. 11. Space agency that landed humans on the Moon
  8. 12. The third planet from the Sun
  9. 13. Satellite of Earth
  10. 15. Famous comet with a periodic orbit
  11. 18. Satellite launched by the Soviet Union in 1957