Dark Matter & Dark Energy Crossword

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