Big Bang

6. Continued progression of existence
7. Two equal and opposite electric charges separated by a small distance
11. A point in spacetime when matter is crushed and the laws of physics break down
14. An instrument for measuring the intensity of light
15. The hot and dense state of the universe during its first 380,000 years after the big bang
17. Three-dimensional expanse that exists beyond Earth's atmosphere and between celestial bodies
18. When the color of an object shifts to red due to it getting farther away from the observer
21. When the color of an object shifts to blue due to it getting closer to the observer
22. Vast regions of the universe that contain very few galaxies
23. Electric and magnetic charges and their interaction
24. An Era approximately 50,000 years after the Big Bang

1. An area in space with gravity so strong that nothing can escape
2. A type of pulsating star that regularly expands and contracts
3. Matter consisting of particles with identical mass but opposite charges
4. A full year of travel at the speed of light
5. Expanding
8. How hot or cold something is
9. Study for the universe
10. The changing of color when distance from the viewer changes
12. Average density of matter and energy needed for the universe to have a flat geometry
13. The apparent shift in position of a nearby object
16. Unit of temperature
19. A system of millions or billions of stars,held together by gravitational attraction
20. Invisible matter that makes up the majority of the universe