Across
- 1. What happens to the color of an object in space when it is moving towards us
- 4. The study of space and everything closely related to it
- 6. A tool used to sort and record different frequencies of light
- 8. The famous scientist who helped give a better understanding of gravity
- 11. All matter and space that exists
- 12. The oldest microwaves in the universe leftover from the big bang
Down
- 2. Came up with the phrase "Big Bang"
- 3. The thing that all matter is composed of
- 5. The spectrum used to study light
- 7. Came up with the theory that galaxies are moving away from each other
- 9. The first subatomic particle to show up in the universe
- 10. What happens to the color of an object in space when it is moving away from us