1. How old is the universe?

2. What is General Relativity?

3. What is the name of relic radiation left over from the Big Bang?

4. What is the name given to the exponential expansion of the early universe?

5. How many fundamental forces are there?

6. What is the Special Theory of Relativity about?

​7. What is the General Theory of Relativity about?

8. What is Dark Energy?

​9. What is Dark Matter?