science vocab
Across
- 3. thery that the universe exploded 13 years ago
- 7. a galaxy that has spiral arms
- 8. the cosmos
- 9. uses mirrors to focus light rays
- 10. collects the light from distant stars & separate them into bands of colors
- 12. a galaxy shaped like a oval
- 13. shift in light in the visible light spectrum
- 14. formed when planets orbit around one star
Down
- 1. galaxy our solar system belongs to
- 2. collection of stars gasses and planets
- 4. unit of measurement that tells how much light travels in a year
- 5. receives radio waves emitted from objects in space
- 6. has no specific shape
- 11. uses convex lenses to bend and focus light rays