Across
- 2. All of space & everything in it
- 4. A body of hot gases that radiates energy derived from themonuclear reactions
- 5. A meteoriod that hit Earth's surface
- 7. A large cloud of gas in space, first formation of stars
- 9. A system in which billions of star and dust is stored
- 10. The attractive force between 2 objects
- 11. human inhabited planet (3rd planet from the sun)
- 12. A tiny star with low tempature
- 13. smallest planet in the solar system (1st planet from the sun)
- 14. Rock orbiting the sun
Down
- 1. The study of objects in space
- 3. The path an objects rotates around another object
- 4. The explosion of a gaint or supergaint star
- 6. Object blocking another object
- 8. The distance of travel in one Earth year