Advanced Space-themed Crossword Puzzle
Listed Items
- 1.  A stroll in the vacuum of space
 
- 2.  Object in space that orbits the earth
 
- 3.  A time of the year when day and night are equal in length
 
- 4.  A visitor from another planet
 
- 5.  A small, icy body that moves around the sun
 
- 6.  A large system of stars, dust, and gas held together by gravity
 
- 7.  A moment when the moon passes between the Earth and the sun
 
- 8.  A celestial source of light and warmth
 
- 9.  Long tube with lenses for viewing stars
 
- 10. A strange aircraft
 
- 10. The totality of all existence
 
- 11. One who flies in a spacecraft
 
- 12. Circular path of an object around another object in space
 
- 13. The study of the physical nature of stars and other celestial bodies
 
- 14. A shortcut through the universe
 
- 15. A transportation device used to reach outer space
 
- 16. A star that briefly increases in brightness
 
- 17. A law of nature that causes objects to be attracted to one another
 
- 18. A place to observe the sky and stars