Across
- 1. Evidence of an expanding universe
- 7. Element formed by stellar fusion
- 8. Early modern scientist who replaced circles with ellipses
- 11. Communicative galactic civilization estimator
- 13. Extremely bright stellar death
- 14. At the center of our galaxy
Down
- 2. A state of matter found in dense celestial objects like white dwarfs and neutron stars
- 3. Stellar nursery
- 4. Tightly packed collection of stars
- 5. Evolved star that’s no longer burning hydrogen in its core
- 6. Combining atomic nuclei in stars
- 9. Spiral galaxy containing the Solar System
- 10. Known as the Red Planet
- 12. Cosmic era lacking stars and light