Outer Space Crossword Puzzle

Advanced Space-themed Crossword Puzzle

1. The totality of all existence
2. A shortcut through the universe
3. The branch of science that deals with the origin, evolution, and structure of the universe
4. A celestial body made of ice and dust, often with a long, bright tail
5. A gigantic group of stars, gas, and dust held together by gravity
6. A tool to observe distant objects
7. Circular path of an object around another object in space
8. A period of time when the light of the sun or moon is blocked
9. The collapse of a star's core
10. A small, solid body that orbits the sun
11. A craft with no known origin
12. A visitor from another planet
13. A bright, star-like object in the sky
14. Person who studies the stars, planets, and other objects in space
15. It takes about 29 days to orbit Earth
16. A large, powerful vehicle used to launch people and objects into space
17. A time of the year when day and night are equal in length
18. Machine the orbits the earth
19. One who flies in a spacecraft