Across
- 1. stellar population that inhabits the rotating, flattened region of our Galaxy.
- 8. stage of the Big Bang where in a tiny fraction of a second, space expanded rapidly due to annihilation
- 9. type of galaxies that vary from nearly circular to very elongated. They possess comparatively little gas and dust, contain older stars and are not actively forming stars anymore
- 11. stellar population that inhabits the far outer regions of the Galaxy, on long ellipsoidal orbits.
- 13. the scientific theory that the Universe as we know it was created in a massive explosion that not only created the majority of matter, but the physical laws that govern our ever-expanding cosmos.
Down
- 2. stage of the Big Bang where accretion begins
- 3. stage of the Big Bang where matter and energy are are “locked” in the form they are
- 4. stage of the Big Bang where it is infinitely dense and infinitely hot
- 5. stellar population that is restricted to the rounded, central region of the Galaxy, also rotating.
- 6. type of galaxies that appear as flat, blue-white disks of stars, gas and dust with yellowish bulges in their centers.
- 7. what invisible presence affects how stars move within galaxies, how galaxies tug on each other and how matter clumped together in the early universe.
- 10. type of galaxies that tend to be small, dwarf galaxies that lack any distinguishable shape
- 12. stage of the Big Bang where dark energy takes over