Across
- 2. the galaxy containing out solar system
- 5. huge collection of stars, gas, and dust held together by gravity
- 6. a massive explosion of a star
- 9. the study of the universe beyond the earths atmosphere
- 11. bright points of light in the night sky
Down
- 1. charged particle found in atoms
- 3. the band of faint light seen in the night sky formed by stars
- 4. a cloud of gas and dust in space
- 7. our galaxies name
- 8. a celestial body that emits a vast amount of energy
- 10. the path of an object as it revolves around another object in space
- 11. the closest star to earth