Across
- 4. – Light stretching toward the red end of the spectrum as objects move away.
- 8. – Event marking the origin of the universe.
- 10. – Radiation left over from the early universe (CMB).
- 11. – What the universe has been undergoing since the Big Bang.
- 12. – Invisible matter that makes up most of the universe’s mass.
Down
- 1. – The infinitely dense point from which the Big Bang expanded.
- 2. – Extremely bright, distant active galactic nucleus.
- 3. – Astronomer who discovered that galaxies are moving away.
- 5. – Exploding star that disperses elements into space.
- 6. – A massive system of stars, gas, and dark matter.
- 7. – The study of the origin and evolution of the universe.
- 9. – Everything that exists in space and time.