Modern Astronomy Exam Review

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Across
  1. 1. hottest color star
  2. 6. red supergiant star (On H-R Diagram)
  3. 7. when a graph goes up and down over and over it is called
  4. 8. as the temperature of stars increase, so does the ________
  5. 10. _____ light has a longer wavelength
  6. 11. when a star explodes
  7. 13. the shape of the milky way galaxy
  8. 15. the force in space that pulls gas together to form stars
  9. 16. will be the last phase of our Sun's life
  10. 17. the universe is 13.8 _____ years old
  11. 18. is the mass divided by the volume
Down
  1. 1. cosmic ____________ is leftover energy from the big bang
  2. 2. _____ light has a shorter wavelength
  3. 3. Giant cloud of gas and dust in space where stars are born
  4. 4. Nuclear _____ is the process that creates energy inside of all stars
  5. 5. when we look at distant galaxies they are all redshifting, meaning they are moving _____ from the milky way
  6. 9. _______'s law states that the galaxies that are farther away from us are moving away from us the fastest
  7. 12. the next phase in the life cycle of our Sun.
  8. 14. the gas that gets fused together inside of main sequence stars