space

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Across
  1. 1. Fifth planet
  2. 3. A very bright meteor.
  3. 5. Planet we leave on
  4. 6. The world or universe seen as an orderly harmonious system
  5. 9. An oval shape. Johannes Kepler discovered the orbits of planets are elliptical in shape and not circular.
  6. 11. Beyond the sun
  7. 14. Any of various group of stars to which define names have been given
  8. 15. Space between the galaxies.
  9. 17. The outermost geological thin layer of an asteroid, moon, or planet.
  10. 19. Small galaxy that contain a few million stars, it is the most common kind of galaxy in the universe.
  11. 20. Eighth planet
  12. 21. The science that deals with the material universe beyond the earth's atmosphere
  13. 24. Planets made primarily of gas, these include Jupiter, Saturn, Uranus, and Neptune.
  14. 25. Second planet
Down
  1. 2. Seventh planet
  2. 4. Massive object found at the beginning of the universe
  3. 7. Fourth planet
  4. 8. One millionth of a meter.
  5. 10. Curved path an object follows around a bigger object or a common center of mass
  6. 12. Smaller body orbiting a larger body
  7. 13. The region in space between the orbits of Mars and Jupiter where most asteroids are located
  8. 16. First planet
  9. 18. Hot gas held together by gravity
  10. 22. Sixth planet
  11. 23. An enormous gravitationally bound assemblage of million or billions stars
  12. 25. Empty space found in the galaxy