Across
- 2. how astronomers explain the way of the universe.
- 5. the displacement of a celestial body going towards smaller wavelengths.
- 6. science that focuses on the universe and the things in it.
- 7. the universe is everything it includes all of space and all matter and energy that space contains.
- 10. wavelengths that electromagnetic radiation extend.
Down
- 1. the oldest and most distant light that we can see in the entire universe.
- 3. visible light is a range of electromagnetic radiation that can be detected by the human eye.
- 4. the basic building blocks of all matter.
- 8. a wavelength of light is stretched and makes it seem as it has shifted.
- 9. it splits light into its components wavelengths.