Big Bang

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Across
  1. 3. 9:48 AM
  2. 5. the wavelength of the light is stretched
  3. 6. How far light can travel in a year
  4. 8. the quality or state of being singular
  5. 9. the physical interaction among electric charges,
  6. 12. a hypothetical form of matter
  7. 13. change in observed wavelength, or frequency
  8. 15. the way the universe began.
Down
  1. 1. he earth is bathed in radio waves that appear to have originated at the time of the primordial "big bang.
  2. 2. the average density of matter required for the Universe to just halt its expansion
  3. 4. the study of the relations between heat, work, temperature, and energy
  4. 7. the science of the origin and development of the universe
  5. 10. the apparent displacement or the difference in apparent direction of an object as seen from two different points not on a straight line with the object
  6. 11. two light nuclei merge to form a single heavier nucleus
  7. 14. Measure of heat