Space Crossword

Advanced Space-themed Crossword Puzzle

1. An unidentified flying object
2. An individual who journeys through space
3. The invisible force that makes things fall to the ground
4. A small, icy body that moves around the sun
5. Small object in space that orbits the earth
6. A spacecraft designed to travel through the air at high speeds
7. The world of space and time
8. A large system of stars, dust, and gas held together by gravity
9. A special day when the sun appears to stand still in the sky
10. A celestial object that is not a comet or planet
11. A huge burning ball of gas in the sky
12. The scientific study of celestial objects, such as stars, planets, and galaxies
12. A visitor from another planet
13. A shortcut through the universe
14. A device used to view distant objects
15. One who knows about the science of the universe
16. A journey outside a spacecraft
17. Circular path of an object around another object in space
18. A star that suddenly increases in brightness and then fades away
19. A celestial phenomenon in which the moon or planet temporarily blocks the sun
20. It takes about 29 days to orbit Earth
21. A building used to observe stars and planets