Across
- 3. The most common galaxy.
- 4. An object in space with a gravitational pull so strong that not even light can escape it.
- 7. Distance between the Sun and Earth.
- 10. Not quite planets, but technically not stars.
- 14. Old stars that are round or egg shaped, and do not spin.
- 15. How we know what direction galaxies are moving in.
- 16. Where stars begin to form. Stellar nurseries
- 17. The very precise math used to measure planets.
Down
- 1. A piece of evidence for the big bang, had two names.
- 2. A normal star, formed from a clump of dirt and gas in a nebula.
- 5. When an 8 solar mass star collapses.
- 6. Main Sequence stars with 8+ solar masses
- 8. A theory about the beginning stages of our universe.
- 9. The 3rd step of the big bang.
- 11. Remnants of an 8-20 solar mass star's supernova
- 12. Used to measure distances outside of our solar system.
- 13. Nuclear Fusion, not ...