Outer Space Crossword Puzzle

Advanced Space-themed Crossword Puzzle

1. Machine the orbits the earth
2. A device used to travel to outer space
3. A celestial body that orbits a planet
4. A tool to look at things that are far away
5. A craft with no known origin
6. A portal between two distant places
7. A stellar explosion that releases a vast amount of energy
8. A large group of stars, gas, and dust bound by gravity
9. A yellowish-orange sphere in the sky
10. A celestial object that is not a comet or planet
11. The entire cosmos
12. One who flies in a spacecraft
13. The science of the heavenly bodies and their phenomena
13. A visitor from another planet
14. A phenomenon that occurs twice a year when the sun reaches its northernmost and southernmost points
15. A mission outside a rocket
16. A place to study the night sky
17. A law of nature that causes objects to be attracted to one another
18. A celestial body made of ice and dust, often with a long, bright tail
19. One who knows about the science of the universe
20. Path of a celestial body around a star
21. A celestial phenomenon in which the moon or planet temporarily blocks the sun