Across
- 2. people thought they were stars in a large sphere pouring out light
- 4. stars emit light at _____ wavelengths
- 5. humans _____ light
- 8. distance light travels in one year
- 9. Redshift allowed us to determine that the universe is
- 12. When an object is moving toward you, wavelengths get
Down
- 1. kind of light an object emits depends on its
- 3. have the most energy
- 6. have the least energy
- 7. based angle a star shifts throughout the year
- 10. the sun is classified as a __ star
- 11. We see the difference in energies in waves when we see