vocabulary

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Across
  1. 3. the range of frequencies of electromagnetic radiation
  2. 5. splits light from something in space so that the wavelength can be recorded
  3. 7. a system of stars and planets help together by gravity
  4. 8. the branch of science that deals with space
  5. 11. a person who played a big role in helping to prove that the universe is constantly expanding
  6. 12. radiation left over from the big bang
  7. 13. the thing that holds all of the existing known matter
  8. 14. light shifts in different diretions as galaxies move
  9. 15. a man who denied the big bang theory and instead promote the theory of stellar nucleosynthesis
  10. 16. a man who developed the theory of relativity
Down
  1. 1. a scale of how much light the human eye can see
  2. 2. two men who discovered cmb while working on a radio
  3. 4. what is needed to do work
  4. 6. one of the first elements formed and people use it to make balloons float
  5. 9. one of the first elements formed and is used to generate electricity
  6. 10. a theory that the universe is constantly expanding