Across
- 3. its been expanding since the big bang
- 4. two scientists using a huge antenna accidentally found this coming from all directions in space
- 5. what the universe is currently doing
- 6. the study of the origin, properties, processes, and evolution of the universe
- 8. an example of this is our solar system
Down
- 1. a group of something
- 2. the theory that states the universe began with a tremendous explosion 13.7 billion years ago
- 7. an example of this is the Milky Way