Across
- 3. a giant cloud of dust and gas
- 4. a big telescope
- 5. how much matter you take up
- 7. a big space rock that orbits earth
- 12. how much light travels in a year
- 14. helps you see stars
- 16. it is an element
- 20. constillation with 16 stars
- 21. a galaxy that includes our solar system
- 23. orbits a planet or star
- 25. it ship in space
- 26. a resistance
- 27. a triple star system in the southern constellation of Centaurus
- 28. first aircraft to pass the helioshere
Down
- 1. its 1.5 hours
- 2. planets do this around the sun
- 6. stars make shapes in space
- 8. we live on it
- 9. a spacecraft orbiting earth
- 10. earth if this
- 11. they study space
- 13. north star
- 15. a galaxy past Neptune
- 17. a force that keeps us on the ground
- 18. it is really bright and makes constellations
- 19. a huge collection of stars
- 22. light can't escape from it
- 24. a constellation with a big cup