Across
- 3. milk blank
- 4. a type of gas
- 7. Can either be stellar or planetary of these
- 9. one of the few visible to the unaided eye, appearing as a milky blur
- 10. a repeating path that an object in space takes around another
- 12. got launched by NASA in 1977
- 13. technology in space
- 16. The distance that light travels
- 18. Are sun is a giant blank
- 19. Earth is a blank
Down
- 1. A star system
- 2. something that orbits every blank
- 5. things that getting sucked into in space
- 6. a group of stars that makes a shape in the sky
- 8. the pole star and the north star is the blank
- 11. A system of millions or billions of stars is a blank
- 14. We live on planet blank
- 15. the amount of matter in an object is blank
- 17. the thing that keeps us on the ground