Across
- 1. Theory of how the universe began (2 words no space!).
- 4. Name of our galaxy (2 words no space!).
- 6. According to the Big Bang Theory, the universe is ____?
- 8. Type of shift that occurs when objects move away from us at very high speeds (2 words no space!).
- 9. The distance light travels in one year (2 words no space!).
Down
- 1. The universe is approximately 14 _____ years old.
- 2. Objects that are redshifted are moving (towards or away?).
- 3. Name for a cluster of billions of stars.
- 5. Our solar system is much (older or younger?) than the universe.
- 7. A light year is a measure of (speed or distance?)