Across
- 2. Anything that has mass and takes up space
- 6. Radiation left over from the big bang
- 7. Force that pulls things together
- 9. Force responsible for the universe's faster expansion
- 11. Everything in space and time; the “big picture”
- 14. Light effect showing galaxies moving away
Down
- 1. Objects whose motion show the presence of dark matter
- 3. What space is doing between galaxies
- 4. Type of radiation the CMB is made of
- 5. A giant collection of stars held together by gravity
- 8. Invisible matter that holds galaxies together
- 10. The ability to do work or cause change
- 12. Travels through space and helps us observe the past
- 13. The color light shifts toward when galaxies move away