Across
- 2. Unit of distance used for stars
- 3. Everything we can observe
- 4. A statement or situation that proves itself right & wrong at the same time
- 6. A thing that can be seen or described by math
Down
- 1. All of the universes together
- 5. Expansion of the universe
- 7. Unproven idea
- 8. A mathematical tool to explain something