Across
- 2. The force of attraction between all masses in the universe
- 7. Being or relating to or resembling or emanating from stars
- 8. Is a region of spacetime exhibiting such strong gravitational pull that nothing.
- 9. Everything that exists anywhere
- 12. A subatomic particle of about the same mass as a proton
- 14. A hypothetical form of matter that is believed to make up 90 percent of the universe; it is invisible (does not absorb or emit light) and does not collide with atomic particles but exerts gravitational force
- 15. Is a star that has substantially expanded in size and luminosity
Down
- 1. A star that is in a stable phase
- 3. Any star of very great intrinsic luminosity and relatively enormous size
- 4. A collection of star systems
- 5. Is a theoretical, hypothetical stage in the life cycle
- 6. A cloud of gas and dust in outer space
- 10. The colossal explosion of a star
- 11. Is a small dense star is the end product
- 13. A contracting mass of gas