Across
- 3. The Big Bang occurred 13.7 .....years ago.
- 5. The residual energy from the Big Bang.
- 8. The Belgian Catholic priest who proposed the Big Bang theory.
- 10. The competing theory of the Big Bang.
- 11. The further a galaxy is, the ...... it is moving away.
Down
- 1. The beginning point of the Big Bang expansion.
- 2. This component came into existence 9 billion years after the Big Bang.
- 4. A star goes through this over time.
- 6. The most abundant element in the Universe.
- 7. The most widely accepted theory for how the Universe began.
- 9. Galaxies moving away from Earth show this phenomenon.