Space

12345678910111213141516171819202122
Across
  1. 3. The universe seen as a well-ordered whole. (6 letters)
  2. 8. The sixth planet from the sun, known for its prominent ring system. (6 letters)
  3. 9. An imaginary line around the middle of a planet or other celestial body, dividing it into northern and southern hemispheres. (7 letters)
  4. 11. The phenomenon in which one celestial body moves into the shadow of another celestial body. (7 letters)
  5. 15. The action of rotating around an axis or center. (8 letters)
  6. 16. The distance that light travels in one year. (9 letters)
  7. 17. The second planet from the sun, known for its brightness and high surface temperatures. (5 letters)
  8. 21. A system of millions or billions of stars, together with gas and dust, held together by gravitational attraction. (6 letters)
  9. 22. A region of space having a gravitational field so intense that no matter or radiation can escape. (9 letters)
Down
  1. 1. A celestial body moving in an elliptical orbit around a star. (6 letters)
  2. 2. A small rocky body orbiting the sun, typically found in the belt between Mars and Jupiter. (8 letters)
  3. 4. An artificial body placed in orbit around the earth or moon or another planet in order to collect information or for communication. (9 letters)
  4. 5. An optical instrument designed to make distant objects appear nearer. (9 letters)
  5. 6. Relating to or associated with the moon. (5 letters)
  6. 7. The curved path of a celestial object around a star, planet, or moon. (5 letters)
  7. 10. A celestial body moving in an elliptical orbit around a star. (6 letters)
  8. 12. The force that attracts a body towards the centre of the earth, or towards any other physical body having mass. (7 letters)
  9. 13. A giant cloud of dust and gas in space, sometimes becoming the birthplace of stars. (6 letters)
  10. 14. The scientific study of celestial objects, space, and the universe as a whole. (9 letters)
  11. 18. Relating to or determined by the sun. (5 letters)
  12. 19. An icy small solar system body that, when passing close to the sun, warms and begins to release gases. (5 letters)
  13. 20. An artificial body placed in orbit around the earth or moon or another planet in order to collect information or for communication. (9 letters)