Outer Space Crossword

Advanced Space-themed Crossword Puzzle

1. An astronomical occurrence when the sun is hidden by the moon
2. An unknown craft
3. A device used to travel to outer space
4. Journey of a celestial body around a star
5. A building used to observe stars and planets
6. One who flies in a spacecraft
7. A glowing ball of gas in space
8. A bridge between two points in space
9. Long tube with lenses for viewing stars
10. A walk outside a rocket in space
11. One who knows about the science of the universe
12. A celestial object that is not a comet or planet
13. The force that keeps us from floating away
14. A point in the year when the sun reaches its greatest declination
15. A celestial object with a nucleus of dust and ice that orbits the sun
16. It takes about 29 days to orbit Earth
17. Machine the orbits the earth
18. A star that suddenly increases in brightness and then fades away quickly
19. The branch of science that deals with the motion of natural objects in space
19. A visitor from another planet
20. The world of space and time