Across
- 4. Abbreviation for the particles left behind by the big bang.
- 5. All matter and space that exists
- 6. The Theory of what created everything in the universe
- 7. 25% of the universe
- 8. The person who created the Theory of relativity
Down
- 1. Quarks, Protons, Neutrons, and Electrons
- 2. The first element created and the most abundant in the universe
- 3. The person who discovered galaxy separation