Big Bang Theory

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Across
  1. 3. huge volumes of space between superclusters that appear to contain very little matter
  2. 4. Extremely high frequency radiation that filled space immediately following the Big Bang
  3. 6. matter that does not give off electromagnetic radiation but is quite abundant in the universe
  4. 9. An object in space whose gravity is so strong not even light can escape.
  5. 11. A slightly unstable star that has a regular variation in brightness and luminosity due to a periodic expansion and contraction in its outer layers.
  6. 13. shift of light to a longer wavelength as it moves away
  7. 14. An apparent shift in the position of an object when viewed from different locations
Down
  1. 1. study of the universe
  2. 2. The theory that the universe originated in a huge explosion that released all matter and energy.
  3. 5. proposes a period of extremely rapid expansion of the universe during its first few moments
  4. 7. A huge group of single stars, star systems, star clusters, dust, and gas bound together by gravity
  5. 8. SI unit for temperature
  6. 10. a continuous area or expanse which is free, available, or unoccupied
  7. 12. created by equal but opposite charges that are separated by a short distance