Across
- 3. A space craft that operates outside the heliosphere
- 6. A research facility
- 7. Matter in an object
- 8. Another word for water
- 11. The planet in which we live on
- 13. A giant cloud of dust and sky
- 14. A bright star located in part of Ursa Minor
- 16. A part of Newton's laws
- 17. Something that doesn't let anything, even light out
- 18. The force that gets us back down when we jump
- 21. A measure of distance for space
Down
- 1. One and a half hours in minutes
- 2. Stars that make up pictures
- 4. A donut shaped celestial body containing with dwarf planets and comets
- 5. The name of a constellation and a galaxy (and a TV show)
- 8. A space telescope
- 9. A spacecraft that orbits around a planet
- 10. Best seen in air that's not polluted, very colorful and pretty
- 12. A system of stars closest to our solar system
- 15. Planets do this around a star
- 18. A system with planets, stars, nebulas, and other space like things
- 19. A round like object that orbits around a star
- 20. Luminous, white dots in the sky
